diff --git a/Changes.txt b/Changes.txt
index b79a29346..07b70ecf6 100644
--- a/Changes.txt
+++ b/Changes.txt
@@ -14,6 +14,9 @@
 
 6.5.3 to 6.6 (??? ??, 202?)
 
+  * Added preliminary support for 'MVC' bankswitching scheme by
+    Rob Bairos.
+
   * Added web links for many games
 
   * Debugger: added optional logging of breaks and traps
diff --git a/src/common/FSNodeZIP.cxx b/src/common/FSNodeZIP.cxx
index 754f848d6..f7720d72e 100644
--- a/src/common/FSNodeZIP.cxx
+++ b/src/common/FSNodeZIP.cxx
@@ -180,7 +180,7 @@ bool FilesystemNodeZIP::getChildren(AbstractFSList& myList, ListMode mode) const
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-size_t FilesystemNodeZIP::read(ByteBuffer& image) const
+size_t FilesystemNodeZIP::read(ByteBuffer& image, size_t) const
 {
   switch(_error)
   {
@@ -205,7 +205,7 @@ size_t FilesystemNodeZIP::read(stringstream& image) const
   // For now, we just read into a buffer and store in the stream
   // TODO: maybe there's a more efficient way to do this?
   ByteBuffer buffer;
-  size_t size = read(buffer);
+  size_t size = read(buffer, 0);
   if(size > 0)
     image.write(reinterpret_cast<char*>(buffer.get()), size);
 
diff --git a/src/common/FSNodeZIP.hxx b/src/common/FSNodeZIP.hxx
index 77246d35f..7747b7acc 100644
--- a/src/common/FSNodeZIP.hxx
+++ b/src/common/FSNodeZIP.hxx
@@ -62,8 +62,8 @@ class FilesystemNodeZIP : public AbstractFSNode
     bool getChildren(AbstractFSList& list, ListMode mode) const override;
     AbstractFSNodePtr getParent() const override;
 
-    size_t read(ByteBuffer& image) const override;
-    size_t read(stringstream& image) const override;
+    size_t read(ByteBuffer& buffer, size_t size) const override;
+    size_t read(stringstream& buffer) const override;
     size_t write(const ByteBuffer& buffer, size_t size) const override;
     size_t write(const stringstream& buffer) const override;
 
diff --git a/src/emucore/Bankswitch.cxx b/src/emucore/Bankswitch.cxx
index ba1f855a7..ce3fa69d9 100644
--- a/src/emucore/Bankswitch.cxx
+++ b/src/emucore/Bankswitch.cxx
@@ -140,6 +140,7 @@ Bankswitch::BSList = {{
   { "FC"      , "FC (32K Amiga)"              },
   { "FE"      , "FE (8K Decathlon)"           },
   { "MDM"     , "MDM (Menu Driven Megacart)"  },
+  { "MVC"     , "MVC (Movie Cart)"            },
   { "SB"      , "SB (128-256K SUPERbank)"     },
   { "TVBOY"   , "TV Boy (512K)"               },
   { "UA"      , "UA (8K UA Ltd.)"             },
@@ -226,6 +227,7 @@ Bankswitch::ExtensionMap Bankswitch::ourExtensions = {
   { "FC"    , Bankswitch::Type::_FC     },
   { "FE"    , Bankswitch::Type::_FE     },
   { "MDM"   , Bankswitch::Type::_MDM    },
+  { "MVC"   , Bankswitch::Type::_MVC    },
   { "SB"    , Bankswitch::Type::_SB     },
   { "TVB"   , Bankswitch::Type::_TVBOY  },
   { "TVBOY" , Bankswitch::Type::_TVBOY  },
@@ -284,6 +286,7 @@ Bankswitch::NameToTypeMap Bankswitch::ourNameToTypes = {
   { "FC"      , Bankswitch::Type::_FC     },
   { "FE"      , Bankswitch::Type::_FE     },
   { "MDM"     , Bankswitch::Type::_MDM    },
+  { "MVC"     , Bankswitch::Type::_MVC    },
   { "SB"      , Bankswitch::Type::_SB     },
   { "TVBOY"   , Bankswitch::Type::_TVBOY  },
   { "UA"      , Bankswitch::Type::_UA     },
diff --git a/src/emucore/Bankswitch.hxx b/src/emucore/Bankswitch.hxx
index 3c1b2454a..38485d2ea 100644
--- a/src/emucore/Bankswitch.hxx
+++ b/src/emucore/Bankswitch.hxx
@@ -44,8 +44,8 @@ class Bankswitch
       _CDF,   _CM,     _CTY,   _CV,    _DF,    _DFSC,  _DPC,
       _DPCP,  _E0,     _E7,    _E78K,  _EF,    _EFSC,  _F0,
       _F4,    _F4SC,   _F6,    _F6SC,  _F8,    _F8SC,  _FA,
-      _FA2,   _FC,     _FE,    _MDM,   _SB,    _TVBOY, _UA,
-      _UASW,  _WD,     _WDSW,  _X07,
+      _FA2,   _FC,     _FE,    _MDM,   _MVC,   _SB,    _TVBOY,
+      _UA,    _UASW,   _WD,    _WDSW,  _X07,
     #ifdef CUSTOM_ARM
       _CUSTOM,
     #endif
diff --git a/src/emucore/CartCreator.cxx b/src/emucore/CartCreator.cxx
index f792b449c..71cc118b8 100644
--- a/src/emucore/CartCreator.cxx
+++ b/src/emucore/CartCreator.cxx
@@ -55,6 +55,7 @@
 #include "CartFC.hxx"
 #include "CartFE.hxx"
 #include "CartMDM.hxx"
+#include "CartMVC.hxx"
 #include "CartSB.hxx"
 #include "CartTVBoy.hxx"
 #include "CartUA.hxx"
@@ -197,6 +198,10 @@ unique_ptr<Cartridge> CartCreator::create(const FilesystemNode& file,
                             Bankswitch::typeToName(type) + "'");
       break;
 
+    case Bankswitch::Type::_MVC:
+      cartridge = make_unique<CartridgeMVC>(file.getPath(), size, md5, settings);
+      break;
+
     default:
       cartridge = createFromImage(image, size, detectedType, md5, settings);
       break;
diff --git a/src/emucore/CartDetector.cxx b/src/emucore/CartDetector.cxx
index 1e37a961f..a83a9b1ea 100644
--- a/src/emucore/CartDetector.cxx
+++ b/src/emucore/CartDetector.cxx
@@ -19,6 +19,7 @@
 #include "Logger.hxx"
 
 #include "CartDetector.hxx"
+#include "CartMVC.hxx"
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Bankswitch::Type CartDetector::autodetectType(const ByteBuffer& image, size_t size)
@@ -242,6 +243,8 @@ Bankswitch::Type CartDetector::autodetectType(const ByteBuffer& image, size_t si
     type = Bankswitch::Type::_3EP;
   else if(isProbablyMDM(image, size))
     type = Bankswitch::Type::_MDM;
+  else if(isProbablyMVC(image, size))
+    type = Bankswitch::Type::_MVC;
 
   // If we get here and autodetection failed, then we force '4K'
   if(type == Bankswitch::Type::_AUTO)
@@ -455,7 +458,7 @@ bool CartDetector::isProbablyCDF(const ByteBuffer& image, size_t size)
   // 0x10adab1e (LOADABLE) if needed for future improvement
   uInt8 cdf[] = { 'C', 'D', 'F' };
   uInt8 cdfjplus[] = { 'P', 'L', 'U', 'S', 'C', 'D', 'F', 'J' };
-  return (searchForBytes(image, size, cdf, 3, 3) || 
+  return (searchForBytes(image, size, cdf, 3, 3) ||
           searchForBytes(image, size, cdfjplus, 8, 1));
 }
 
@@ -691,6 +694,38 @@ bool CartDetector::isProbablyMDM(const ByteBuffer& image, size_t size)
   return searchForBytes(image, std::min<size_t>(size, 8_KB), mdmc, 4);
 }
 
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool CartDetector::isProbablyMVC(const ByteBuffer& image, size_t size)
+{
+  // MVC version 0
+  uInt8 sig[] = { 'M', 'V', 'C', 0 };
+  int sigSize = sizeof(sig);
+  return searchForBytes(image, std::min<size_t>(size, sigSize+1), sig, sigSize);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+size_t CartDetector::isProbablyMVC(const FilesystemNode& rom)
+{
+  constexpr size_t frameSize = 2 * CartridgeMVC::MVC_FIELD_PAD_SIZE;
+
+  if(Bankswitch::typeFromExtension(rom) == Bankswitch::Type::_MVC)
+    return frameSize;
+
+  Serializer s(rom.getPath(), Serializer::Mode::ReadOnly);
+  if(s)
+  {
+    if(s.size() < frameSize)
+      return 0;
+
+    uInt8 image[frameSize];
+    s.getByteArray(image, frameSize);
+
+    uInt8 sig[] = { 'M', 'V', 'C', 0 };  // MVC version 0
+    return searchForBytes(image, frameSize, sig, 4) ? frameSize : 0;
+  }
+  return 0;
+}
+
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 bool CartDetector::isProbablySB(const ByteBuffer& image, size_t size)
 {
diff --git a/src/emucore/CartDetector.hxx b/src/emucore/CartDetector.hxx
index 1ff16fc30..dc9025c76 100644
--- a/src/emucore/CartDetector.hxx
+++ b/src/emucore/CartDetector.hxx
@@ -19,6 +19,7 @@
 #define CARTRIDGE_DETECTOR_HXX
 
 #include "Bankswitch.hxx"
+#include "FSNode.hxx"
 #include "bspf.hxx"
 
 /**
@@ -40,6 +41,12 @@ class CartDetector
     */
     static Bankswitch::Type autodetectType(const ByteBuffer& image, size_t size);
 
+    /**
+      MVC cartridges are of arbitary large length
+      Returns size of frame if stream is probably an MVC movie cartridge
+    */
+    static size_t isProbablyMVC(const FilesystemNode& rom);
+
   private:
     /**
       Search the image for the specified byte signature
@@ -189,6 +196,11 @@ class CartDetector
     */
     static bool isProbablyMDM(const ByteBuffer& image, size_t size);
 
+    /**
+      Returns true if the image is probably an MVC movie cartridge
+    */
+    static bool isProbablyMVC(const ByteBuffer& image, size_t size);
+
     /**
       Returns true if the image is probably a SB bankswitching cartridge
     */
diff --git a/src/emucore/CartMVC.cxx b/src/emucore/CartMVC.cxx
new file mode 100755
index 000000000..37d3d6024
--- /dev/null
+++ b/src/emucore/CartMVC.cxx
@@ -0,0 +1,1579 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll
+//  SS  SS   tt           ll   ll
+//  SS     tttttt  eeee   ll   ll   aaaa
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2021 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//============================================================================
+
+#include "Serializer.hxx"
+#include "Serializable.hxx"
+#include "System.hxx"
+#include "CartMVC.hxx"
+
+/**
+  Implementation of MovieCart.
+  1K of memory is presented on the bus, but is repeated to fill the 4K image space.
+  Contents are dynamically altered with streaming image and audio content as specific
+  128-byte regions are entered.
+  Original implementation: github.com/lodefmode/moviecart
+
+  @author  Rob Bairos
+*/
+
+#define LO_JUMP_BYTE(X) ((X) & 0xff)
+#define HI_JUMP_BYTE(X) ((((X) & 0xff00) >> 8) | 0x10)
+
+#define COLOR_BLUE      0x9A
+// #define COLOR_WHITE     0x0E
+
+#define OSD_FRAMES      180
+#define BACK_SECONDS    10
+
+#define TITLE_CYCLES    1000000
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+/**
+  Simulate retrieval 512 byte chunks from a serial source
+*/
+class StreamReader : public Serializable
+{
+  public:
+    StreamReader() = default;
+
+    bool open(const string& path) {
+      myFile = Serializer(path, Serializer::Mode::ReadOnly);
+      if(myFile)
+        myFileSize = myFile.size();
+
+      return bool(myFile);
+    }
+
+    void blankPartialLines(bool index) {
+      constexpr int colorSize = 192 * 5;
+      if (index)
+      {
+        // top line
+        myColor[0] = 0;
+        myColor[1] = 0;
+        myColor[2] = 0;
+        myColor[3] = 0;
+        myColor[4] = 0;
+      }
+      else
+      {
+        // bottom line
+        myColor[colorSize - 5] = 0;
+        myColor[colorSize - 4] = 0;
+        myColor[colorSize - 3] = 0;
+        myColor[colorSize - 2] = 0;
+        myColor[colorSize - 1] = 0;
+      }
+    }
+
+    void swapField(bool index) {
+      uInt8* offset = index ? myBuffer1 : myBuffer2;
+
+      myVersion  = offset + VERSION_DATA_OFFSET;
+      myFrame    = offset + FRAME_DATA_OFFSET;
+      myAudio    = offset + AUDIO_DATA_OFFSET;
+      myGraph    = offset + GRAPH_DATA_OFFSET;
+      myTimecode = offset + TIMECODE_DATA_OFFSET;
+      myColor    = offset + COLOR_DATA_OFFSET;
+    }
+
+    bool readField(uInt32 fnum, bool index) {
+      if(myFile)
+      {
+        size_t offset = ((fnum + 0) * CartridgeMVC::MVC_FIELD_PAD_SIZE);
+
+        if(offset + CartridgeMVC::MVC_FIELD_PAD_SIZE < myFileSize)
+        {
+          myFile.setPosition(offset);
+          if(index)
+            myFile.getByteArray(myBuffer1, CartridgeMVC::MVC_FIELD_SIZE);
+          else
+            myFile.getByteArray(myBuffer2, CartridgeMVC::MVC_FIELD_SIZE);
+
+          return true;
+        }
+      }
+      return false;
+    }
+
+    uInt8 readVersion() { return *myVersion++; }
+    uInt8 readFrame()   { return *myFrame++;   }
+    uInt8 readColor()   { return *myColor++;   }
+
+    uInt8 readGraph() {
+      return myGraphOverride ? *myGraphOverride++ : *myGraph++;
+    }
+
+    void overrideGraph(const uInt8* p) { myGraphOverride = p; }
+
+    uInt8 readAudio() { return *myAudio++; }
+
+    uInt8 peekAudio() const { return *myAudio; }
+
+    void startTimeCode() { myGraph = myTimecode; }
+
+    bool save(Serializer& out) const override {
+      try
+      {
+        out.putByteArray(myBuffer1, CartridgeMVC::MVC_FIELD_SIZE);
+        out.putByteArray(myBuffer2, CartridgeMVC::MVC_FIELD_SIZE);
+
+      #if 0  // FIXME - determine whether we need to load/save this
+        const uInt8*  myAudio
+        const uInt8*  myGraph
+        const uInt8*  myGraphOverride
+        const uInt8*  myTimecode
+        const uInt8*  myColor
+        const uInt8*  myVersion
+        const uInt8*  myFrame
+      #endif
+      }
+      catch(...)
+      {
+        return false;
+      }
+      return true;
+    }
+
+    bool load(Serializer& in) override {
+      try
+      {
+        in.getByteArray(myBuffer1, CartridgeMVC::MVC_FIELD_SIZE);
+        in.getByteArray(myBuffer2, CartridgeMVC::MVC_FIELD_SIZE);
+
+      #if 0  // FIXME - determine whether we need to load/save this
+        const uInt8*  myAudio
+        const uInt8*  myGraph
+        const uInt8*  myGraphOverride
+        const uInt8*  myTimecode
+        const uInt8*  myColor
+        const uInt8*  myVersion
+        const uInt8*  myFrame
+      #endif
+      }
+      catch(...)
+      {
+        return false;
+      }
+      return true;
+    }
+
+  private:
+    static constexpr int
+        VERSION_DATA_OFFSET = 0,
+        FRAME_DATA_OFFSET = 4,
+        AUDIO_DATA_OFFSET = 7,
+        GRAPH_DATA_OFFSET = 269,
+        TIMECODE_DATA_OFFSET = 1229,
+        COLOR_DATA_OFFSET = 1289,
+        END_DATA_OFFSET = 2249;
+
+    const uInt8*  myAudio{nullptr};
+
+    const uInt8*  myGraph{nullptr};
+    const uInt8*  myGraphOverride{nullptr};
+
+    const uInt8*  myTimecode{nullptr};
+    uInt8*        myColor{nullptr};
+    const uInt8*  myVersion{nullptr};
+    const uInt8*  myFrame{nullptr};
+
+    uInt8 myBuffer1[CartridgeMVC::MVC_FIELD_SIZE];
+    uInt8 myBuffer2[CartridgeMVC::MVC_FIELD_SIZE];
+
+    Serializer myFile;
+    size_t myFileSize{0};
+};
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+/**
+  State of current switches and joystick positions to control MovieCart
+*/
+class MovieInputs : public Serializable
+{
+  public:
+    MovieInputs() = default;
+
+    void init() {
+      bw = fire = select = reset = false;
+      right = left = up = down = false;
+    }
+
+    bool bw{false}, fire{false}, select{false}, reset{false};
+    bool right{false}, left{false}, up{false}, down{false};
+
+    void updateDirection(uInt8 val) {
+      right = val & TRANSPORT_RIGHT;
+      left  = val & TRANSPORT_LEFT;
+      up    = val & TRANSPORT_UP;
+      down  = val & TRANSPORT_DOWN;
+    }
+
+    void updateTransport(uInt8 val) {
+      bw     = val & TRANSPORT_BW;
+      fire   = val & TRANSPORT_BUTTON;
+      select = val & TRANSPORT_SELECT;
+      reset  = val & TRANSPORT_RESET;
+    }
+
+    bool save(Serializer& out) const override {
+      try
+      {
+        out.putBool(bw);      out.putBool(fire);
+        out.putBool(select);  out.putBool(reset);
+        out.putBool(right);   out.putBool(left);
+        out.putBool(up);      out.putBool(down);
+      }
+      catch(...)
+      {
+        return false;
+      }
+      return true;
+    }
+
+    bool load(Serializer& in) override {
+      try
+      {
+        bw = in.getBool();      fire = in.getBool();
+        select = in.getBool();  reset = in.getBool();
+        right = in.getBool();   left = in.getBool();
+        up = in.getBool();      down = in.getBool();
+      }
+      catch(...)
+      {
+        return false;
+      }
+      return true;
+    }
+
+  private:
+    static constexpr uInt8
+        TRANSPORT_RIGHT   = 0x10,
+        TRANSPORT_LEFT    = 0x08,
+        TRANSPORT_DOWN    = 0x04,
+        TRANSPORT_UP      = 0x02,
+        TRANSPORT_UNUSED1 = 0x01; // Right-2
+
+    static constexpr uInt8
+        TRANSPORT_BW      = 0x10,
+        TRANSPORT_UNUSED2 = 0x08,
+        TRANSPORT_SELECT  = 0x04,
+        TRANSPORT_RESET   = 0x02,
+        TRANSPORT_BUTTON  = 0x01;
+  };
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+/**
+  Various kernel, OSD and scale definitions
+  @author  Rob Bairos
+*/
+
+#define TIMECODE_HEIGHT     12
+#define MAX_LEVEL           11
+#define DEFAULT_LEVEL       6
+#define BLANK_LINE_SIZE   (30+3+37-1) // 70-1
+
+// #define addr_kernel_48 0x800
+#define addr_right_line 0x946
+#define addr_set_aud_right 0x94a
+#define addr_set_gdata9 0x94c
+#define addr_set_gcol9 0x950
+#define addr_set_gdata6 0x952
+#define addr_set_gcol6 0x956
+#define addr_set_gdata5 0x95a
+#define addr_set_gcol5 0x95e
+#define addr_set_gdata8 0x962
+#define addr_set_gcol7 0x966
+#define addr_set_gdata7 0x96a
+#define addr_set_gcol8 0x96e
+// #define addr_left_line 0x980
+#define addr_set_gdata1 0x982
+#define addr_set_aud_left 0x986
+#define addr_set_gdata4 0x98a
+#define addr_set_gcol4 0x98c
+#define addr_set_gcol1 0x98e
+#define addr_set_gdata0 0x992
+#define addr_set_gcol0 0x996
+#define addr_set_gdata3 0x99a
+#define addr_set_gcol2 0x99e
+#define addr_set_gdata2 0x9a2
+#define addr_set_gcol3 0x9a6
+#define addr_pick_continue 0x9b4
+// #define addr_main_start 0xa00
+// #define addr_aud_bank_setup 0xa0c
+// #define addr_tg0 0xa24
+// #define addr_title_again 0xa3b
+// #define addr_wait_cnt 0xa77
+#define addr_end_lines 0xa80
+#define addr_set_aud_endlines 0xa8c
+#define addr_set_overscan_size 0xa90
+#define addr_set_vblank_size 0xaa6
+#define addr_pick_extra_lines 0xaaf
+#define addr_pick_transport 0xab6
+#define addr_transport_direction 0xab9
+#define addr_transport_buttons 0xac2
+// #define addr_transport_done 0xacb
+// #define addr_wait_lines 0xad0
+// #define addr_transport_done1 0xae1
+// #define addr_draw_title 0xb00
+#define addr_title_loop 0xb50
+// #define addr_black_bar 0xb52
+// #define addr_animate_bar1 0xb58
+// #define addr_animate_bar_again1 0xb5a
+// #define addr_animate_dex1 0xb65
+#define addr_audio_bank 0xb80
+// #define addr_reset_loop 0xbfa
+
+// scale adjustments, automatically generated
+static constexpr uInt8 scale0[16] = {
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8   /* 0.0000 */
+};
+static constexpr uInt8 scale1[16] = {
+  6,  6,  7,  7,  7,  7,  7,  7,  8,  8,  8,  8,  8,  8,  9,  9   /* 0.1667 */
+};
+static constexpr uInt8 scale2[16] = {
+  5,  5,  6,  6,  6,  7,  7,  7,  8,  8,  8,  9,  9,  9, 10, 10   /* 0.3333 */
+};
+static constexpr uInt8 scale3[16] = {
+  4,  4,  5,  5,  6,  6,  7,  7,  8,  8,  9,  9, 10, 10, 11, 11   /* 0.5000 */
+};
+static constexpr uInt8 scale4[16] = {
+  3,  3,  4,  5,  5,  6,  7,  7,  8,  9,  9, 10, 11, 11, 12, 13   /* 0.6667 */
+};
+static constexpr uInt8 scale5[16] = {
+  1,  2,  3,  4,  5,  5,  6,  7,  8,  9, 10, 10, 11, 12, 13, 14   /* 0.8333 */
+};
+static constexpr uInt8 scale6[16] = {
+  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15   /* 1.0000 */
+};
+static constexpr uInt8 scale7[16] = {
+  0,  0,  0,  1,  3,  4,  5,  7,  8, 10, 11, 12, 14, 15, 15, 15   /* 1.3611 */
+};
+static constexpr uInt8 scale8[16] = {
+  0,  0,  0,  0,  1,  3,  5,  7,  8, 10, 12, 14, 15, 15, 15, 15   /* 1.7778 */
+};
+static constexpr uInt8 scale9[16] = {
+  0,  0,  0,  0,  0,  2,  4,  6,  9, 11, 13, 15, 15, 15, 15, 15   /* 2.2500 */
+};
+static constexpr uInt8 scale10[16] = {
+  0,  0,  0,  0,  0,  1,  3,  6,  9, 12, 14, 15, 15, 15, 15, 15   /* 2.7778 */
+};
+static const uInt8* scales[11] = {
+  scale0, scale1, scale2, scale3, scale4, scale5,
+  scale6, scale7, scale8, scale9, scale10
+};
+
+// lower bit is ignored anyways
+static constexpr uInt8 shiftBright[16 + MAX_LEVEL - 1] = {
+  0,  0,  0,  0,  0,  0,  0,  1,  2,  3,  4,  5,  6,
+  7,  8,  9, 10, 11, 12, 13, 14, 15, 15, 15, 15, 15
+};
+
+// Compiled kernel
+static constexpr unsigned char kernelROM[] = {
+  133, 2, 185, 50, 248, 133, 27, 185, 62, 248, 133, 28, 185, 74, 248, 133,
+  27, 185, 86, 248, 133, 135, 185, 98, 248, 190, 110, 248, 132, 136, 164, 135,
+  132, 28, 133, 27, 134, 28, 134, 27, 164, 136, 102, 137, 176, 210, 136, 16,
+  207, 96, 0, 1, 1, 1, 0, 0, 48, 48, 50, 53, 56, 48, 249, 129,
+  129, 128, 248, 0, 99, 102, 102, 102, 230, 99, 140, 252, 140, 136, 112, 0,
+  192, 97, 99, 102, 102, 198, 198, 198, 248, 198, 248, 0, 193, 32, 48, 24,
+  24, 25, 24, 24, 24, 24, 126, 0, 249, 97, 97, 97, 97, 249, 0, 0,
+  0, 0, 0, 0, 248, 128, 128, 224, 128, 248, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 133, 2, 133, 42, 169, 0, 162, 223, 133, 25,
+  160, 98, 169, 159, 133, 28, 169, 248, 133, 7, 169, 231, 133, 27, 169, 242,
+  133, 6, 169, 247, 133, 28, 169, 172, 133, 6, 169, 253, 133, 27, 169, 216,
+  133, 7, 134, 27, 132, 6, 133, 43, 133, 128, 133, 128, 133, 128, 133, 42,
+  133, 2, 169, 207, 133, 28, 169, 0, 133, 25, 162, 191, 160, 114, 169, 54,
+  133, 7, 169, 243, 133, 27, 169, 66, 133, 6, 169, 239, 133, 28, 169, 238,
+  133, 6, 169, 251, 133, 27, 169, 182, 133, 7, 134, 27, 132, 6, 169, 128,
+  133, 32, 133, 33, 76, 70, 249, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  120, 216, 162, 255, 154, 169, 0, 149, 0, 202, 208, 251, 169, 128, 133, 130,
+  169, 251, 133, 131, 169, 1, 133, 37, 133, 38, 169, 3, 133, 4, 133, 5,
+  133, 2, 162, 4, 133, 128, 202, 208, 251, 133, 128, 133, 16, 133, 17, 169,
+  208, 133, 32, 169, 224, 133, 33, 133, 2, 133, 42, 165, 132, 106, 106, 133,
+  6, 133, 7, 169, 85, 133, 137, 32, 0, 251, 176, 239, 169, 0, 133, 9,
+  133, 37, 133, 27, 133, 16, 234, 133, 17, 133, 28, 133, 27, 133, 28, 169,
+  6, 133, 4, 169, 2, 133, 5, 169, 1, 133, 38, 169, 0, 133, 32, 169,
+  240, 133, 33, 133, 42, 162, 5, 202, 208, 253, 133, 43, 76, 128, 250, 255,
+  160, 0, 132, 27, 132, 28, 132, 27, 169, 0, 169, 0, 169, 0, 133, 25,
+  162, 29, 32, 208, 250, 169, 2, 133, 0, 162, 3, 32, 208, 250, 169, 0,
+  133, 0, 169, 2, 133, 1, 162, 37, 32, 208, 250, 162, 0, 134, 1, 162,
+  0, 240, 3, 32, 208, 250, 76, 194, 250, 173, 128, 2, 74, 74, 74, 76,
+  203, 250, 165, 12, 10, 173, 130, 2, 42, 41, 23, 133, 129, 76, 70, 249,
+  133, 2, 169, 0, 177, 130, 133, 25, 165, 129, 240, 5, 198, 129, 173, 128,
+  20, 200, 202, 208, 235, 96, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  162, 30, 32, 82, 251, 169, 2, 133, 0, 162, 3, 32, 82, 251, 169, 0,
+  133, 0, 169, 2, 133, 1, 162, 37, 32, 82, 251, 169, 0, 133, 1, 198,
+  132, 165, 132, 133, 133, 160, 255, 162, 30, 32, 88, 251, 162, 54, 32, 82,
+  251, 160, 11, 32, 0, 248, 169, 0, 133, 27, 133, 28, 133, 27, 133, 28,
+  162, 54, 32, 82, 251, 165, 132, 133, 133, 160, 1, 162, 30, 32, 88, 251,
+  56, 96, 169, 0, 133, 133, 160, 0, 132, 134, 24, 165, 133, 101, 134, 133,
+  133, 133, 2, 133, 9, 202, 208, 242, 96, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 250, 0, 250, 0, 250,
+};
+
+// OSD labels
+static constexpr uInt8 brightLabelEven[] = {
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  0, 225, 48, 12, 252,
+  6, 140, 231, 96, 0,
+  0, 113, 48, 12, 96,
+  6, 140, 192, 96, 0,
+  0, 225, 49, 15, 96,
+  6, 152, 195, 96, 0,
+  0, 49, 48, 12, 96,
+  6, 140, 231, 96, 0,
+  0, 225, 48, 12, 96,
+};
+
+static constexpr uInt8 brightLabelOdd[] = {
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  7, 252, 126, 99, 0,
+  0, 113, 48, 12, 96,
+  6, 140, 192, 96, 0,
+  0, 97, 49, 12, 96,
+  7, 248, 223, 224, 0,
+  0, 113, 49, 12, 96,
+  6, 156, 195, 96, 0,
+  0, 113, 48, 12, 96,
+  7, 142, 127, 96, 0,
+  0, 0, 0, 0, 0
+};
+
+static constexpr uInt8 volumeLabelEven[] = {
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  0, 199, 192, 14, 254,
+  113, 112, 99, 112, 0,
+  0, 140, 192, 14, 192,
+  51, 48, 99, 240, 0,
+  0, 28, 192, 15, 254,
+  31, 48, 99, 240, 0,
+  0, 12, 192, 15, 192,
+  30, 112, 119, 176, 0,
+  0, 7, 252, 12, 254,
+};
+
+static constexpr uInt8 volumeLabelOdd[] = {
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  97, 224, 99, 112, 0,
+  0, 142, 192, 14, 192,
+  51, 112, 99, 112, 0,
+  0, 28, 192, 15, 192,
+  59, 48, 99, 240, 0,
+  0, 28, 192, 15, 192,
+  30, 112, 99, 176, 0,
+  0, 14, 192, 13, 192,
+  14, 224, 62, 48, 0,
+  0, 0, 0, 0, 0
+};
+
+// Level bars
+// 8 rows * 5 columns = 40
+static constexpr uInt8 levelBarsEvenData[] = {
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  2, 40, 161, 133, 20,
+  20, 80, 66, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 40, 161, 133, 20,
+  244, 80, 66, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 232, 161, 133, 20,
+  247, 80, 66, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 161, 133, 20,
+  247, 208, 66, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 161, 133, 20,
+  247, 223, 66, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 133, 20,
+  247, 223, 66, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 133, 20,
+  247, 223, 126, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 20,
+  247, 223, 126, 10, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 20,
+  247, 223, 126, 250, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 244,
+  247, 223, 126, 251, 32,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+  /**/
+  0, 0, 0, 0, 0,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  0, 0, 0, 0, 0,
+};
+
+static constexpr uInt8 levelBarsOddData[] = {
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  20, 80, 66, 10, 32,
+  2, 40, 161, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  244, 80, 66, 10, 32,
+  3, 40, 161, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 80, 66, 10, 32,
+  3, 232, 161, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 208, 66, 10, 32,
+  3, 239, 161, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 66, 10, 32,
+  3, 239, 161, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 66, 10, 32,
+  3, 239, 191, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 10, 32,
+  3, 239, 191, 133, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 10, 32,
+  3, 239, 191, 253, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 250, 32,
+  3, 239, 191, 253, 20,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 32,
+  3, 239, 191, 253, 244,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+  /**/
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  247, 223, 126, 251, 224,
+  3, 239, 191, 253, 247,
+  0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0,
+};
+
+////////////////////////////////////////////////////////////////////////////////
+class MovieCart : public Serializable
+{
+  public:
+    MovieCart() = default;
+
+    bool init(const string& path);
+    bool process(uInt16 address);
+
+    bool save(Serializer& out) const override;
+    bool load(Serializer& in) override;
+
+    uInt8 readROM(uInt16 address) const {
+      return myROM[address & 1023];
+    }
+
+    void writeROM(uInt16 address, uInt8 data) {
+      myROM[address & 1023] = data;
+    }
+
+  private:
+    enum Mode : uInt8
+    {
+      Volume,
+      Bright,
+      Time,
+      Last = Time
+    };
+
+    enum class TitleState
+    {
+      Display,
+      Exiting,
+      Stream
+    };
+
+    void stopTitleScreen() {
+      // clear carry, one bit difference from 0x38 sec
+      writeROM(addr_title_loop + 0, 0x18);
+    }
+
+    void writeColor(uInt16 address);
+    void writeAudioData(uInt16 address, uInt8 val) {
+      writeROM(address, myVolumeScale[val]);
+    }
+    void writeAudio(uInt16 address) {
+      writeAudioData(address, myStream.readAudio());
+    }
+    void writeGraph(uInt16 address) {
+      writeROM(address, myStream.readGraph());
+    }
+
+    void runStateMachine();
+
+    void fill_addr_right_line();
+    void fill_addr_left_line(bool again);
+    void fill_addr_end_lines();
+    void fill_addr_blank_lines();
+
+    void updateTransport();
+
+    // data
+    uInt8 myROM[1024];
+
+    // title screen state
+    int        myTitleCycles{0};
+    TitleState myTitleState{TitleState::Display};
+
+    // address info
+    bool  myA7{false};
+    bool  myA10{false};
+    uInt8 myA10_Count{0};
+
+    // state machine info
+    uInt8 myState{3};
+    bool  myPlaying{true};
+    bool  myOdd{true};
+    bool  myBufferIndex{false};
+
+    uInt8 myLines{0};
+    Int32 myFrameNumber{1};  // signed
+
+    uInt8 myMode{Mode::Volume};
+    uInt8 myBright{DEFAULT_LEVEL};
+    uInt8 myForceColor{0};
+
+    // expressed in frames
+    uInt8 myDrawLevelBars{0};
+    uInt8 myDrawTimeCode{0};
+
+    StreamReader myStream;
+    MovieInputs myInputs;
+    MovieInputs myLastInputs;
+
+    Int8  mySpeed{1};  // signed
+    uInt8 myJoyRepeat{0};
+    uInt8 myDirectionValue{0};
+    uInt8 myButtonsValue{0};
+
+    uInt8        myVolume{DEFAULT_LEVEL};
+    const uInt8* myVolumeScale{scales[DEFAULT_LEVEL]};
+    uInt8        myFirstAudioVal{0};
+};
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool MovieCart::init(const string& path)
+{
+  memcpy(myROM, kernelROM, 1024);
+
+  myTitleCycles = 0;
+  myTitleState = TitleState::Display;
+
+  myA7 = false;
+  myA10 = false;
+  myA10_Count = 0;
+
+  myState = 3;
+  myPlaying = true;
+  myOdd = true;
+  myBufferIndex = false;
+  myFrameNumber = 1;
+
+  myInputs.init();
+  myLastInputs.init();
+  mySpeed = 1;
+  myJoyRepeat = 0;
+  myDirectionValue = 0;
+  myButtonsValue = 0;
+
+  myLines = 0;
+  myForceColor = 0;
+  myDrawLevelBars = 0;
+  myDrawTimeCode = 0;
+  myFirstAudioVal = 0;
+
+  myMode = Mode::Volume;
+  myVolume = DEFAULT_LEVEL;
+  myVolumeScale = scales[DEFAULT_LEVEL];
+  myBright = DEFAULT_LEVEL;
+
+  if(!myStream.open(path))
+    return false;
+
+  myStream.swapField(true);
+
+  return true;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::writeColor(uInt16 address)
+{
+  uint8_t v = myStream.readColor();
+
+  v = (v & 0xf0) | shiftBright[(v & 0x0f) + myBright];
+
+  if(myForceColor)
+    v = myForceColor;
+  if(myInputs.bw)
+    v &= 0x0f;
+
+  writeROM(address, v);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::updateTransport()
+{
+  myStream.overrideGraph(nullptr);
+
+  // have to cut rate in half, to remove glitches...todo..
+  {
+    if(myBufferIndex)
+    {
+      uInt8 temp = ~(myA10_Count & 0x1e) & 0x1e;
+
+      if (temp == myDirectionValue)
+        myInputs.updateDirection(temp);
+
+      myDirectionValue = temp;
+    }
+    else
+    {
+      uInt8 temp = ~(myA10_Count & 0x17) & 0x17;
+
+      if(temp == myButtonsValue)
+        myInputs.updateTransport(temp);
+
+      myButtonsValue = temp;
+    }
+
+    myA10_Count = 0;
+  }
+
+  if(myInputs.reset)
+  {
+    myFrameNumber = 1;
+    myPlaying = true;
+    myDrawTimeCode = OSD_FRAMES;
+
+    // goto update_stream;
+    myLastInputs = myInputs;
+    return;
+  }
+
+  uInt8 lastMainMode = myMode;
+
+  if(myInputs.up && !myLastInputs.up)
+  {
+    if(myMode == 0)
+      myMode = Mode::Last;
+    else
+      myMode--;
+  }
+  else if(myInputs.down && !myLastInputs.down)
+  {
+    if (myMode == Mode::Last)
+      myMode = 0;
+    else
+      myMode++;
+  }
+
+  if(myInputs.left || myInputs.right)
+  {
+    myJoyRepeat++;
+  }
+  else
+  {
+    myJoyRepeat = 0;
+    mySpeed = 1;
+  }
+
+  if(myJoyRepeat & 16)
+  {
+    myJoyRepeat = 0;
+
+    if(myInputs.left || myInputs.right)
+    {
+      if(myMode == Mode::Time)
+      {
+        myDrawTimeCode = OSD_FRAMES;
+        mySpeed += 4;
+        if (mySpeed < 0)
+          mySpeed -= 4;
+      }
+      else if(myMode == Mode::Volume)
+      {
+        myDrawLevelBars = OSD_FRAMES;
+        if(myInputs.left)
+        {
+          if (myVolume)
+            myVolume--;
+        }
+        else
+        {
+          myVolume++;
+          if(myVolume >= MAX_LEVEL)
+            myVolume--;
+        }
+      }
+      else if(myMode == Mode::Bright)
+      {
+        myDrawLevelBars = OSD_FRAMES;
+        if(myInputs.left)
+        {
+          if(myBright)
+            myBright--;
+        }
+        else
+        {
+          myBright++;
+          if(myBright >= MAX_LEVEL)
+            myBright--;
+        }
+      }
+    }
+  }
+
+  if(myInputs.select && !myLastInputs.select)
+  {
+    myDrawTimeCode = OSD_FRAMES;
+    myFrameNumber -= 60 * BACK_SECONDS + 1;
+    //goto update_stream;
+    myLastInputs = myInputs;
+    return;
+  }
+
+  if(myInputs.fire && !myLastInputs.fire)
+    myPlaying = !myPlaying;
+
+  switch(myMode)
+  {
+    case Mode::Time:
+      if(lastMainMode != myMode)
+        myDrawTimeCode = OSD_FRAMES;
+      break;
+
+    case Mode::Bright:
+    case Mode::Volume:
+    default:
+      if(lastMainMode != myMode)
+        myDrawLevelBars = OSD_FRAMES;
+      break;
+  }
+
+  // just draw one
+  if(myDrawLevelBars > myDrawTimeCode)
+    myDrawTimeCode = 0;
+  else
+    myDrawLevelBars = 0;
+
+  if(myPlaying)
+    myVolumeScale = scales[myVolume];
+  else
+    myVolumeScale = scales[0];
+
+  // update frame
+  Int8 step = 1;
+
+  if(!myPlaying)  // step while paused
+  {
+    if(myMode == Mode::Time)
+    {
+      if(myInputs.right && !myLastInputs.right)
+        step = 1;
+      else if(myInputs.left && !myLastInputs.left)
+        step = -3;
+      else
+        step = (myFrameNumber & 1) ? -1 : 1;
+    }
+    else
+    {
+      step = (myFrameNumber & 1) ? -1 : 1;
+    }
+  }
+  else
+  {
+    if(myMode == Mode::Time)
+    {
+      if(myInputs.right)
+        step = mySpeed;
+      else if (myInputs.left)
+        step = -mySpeed;
+    }
+    else
+    {
+      step = 1;
+    }
+  }
+
+  myFrameNumber += step;
+  if(myFrameNumber < 1)
+  {
+    myFrameNumber = 1;
+    mySpeed = 1;
+  }
+
+  myLastInputs = myInputs;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::fill_addr_right_line()
+{
+  writeAudio(addr_set_aud_right + 1);
+
+  writeGraph(addr_set_gdata5 + 1);
+  writeGraph(addr_set_gdata6 + 1);
+  writeGraph(addr_set_gdata7 + 1);
+  writeGraph(addr_set_gdata8 + 1);
+  writeGraph(addr_set_gdata9 + 1);
+
+  writeColor(addr_set_gcol5 + 1);
+  writeColor(addr_set_gcol6 + 1);
+  writeColor(addr_set_gcol7 + 1);
+  writeColor(addr_set_gcol8 + 1);
+  writeColor(addr_set_gcol9 + 1);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::fill_addr_left_line(bool again)
+{
+  writeAudio(addr_set_aud_left + 1);
+
+  writeGraph(addr_set_gdata0 + 1);
+  writeGraph(addr_set_gdata1 + 1);
+  writeGraph(addr_set_gdata2 + 1);
+  writeGraph(addr_set_gdata3 + 1);
+  writeGraph(addr_set_gdata4 + 1);
+
+  writeColor(addr_set_gcol0 + 1);
+  writeColor(addr_set_gcol1 + 1);
+  writeColor(addr_set_gcol2 + 1);
+  writeColor(addr_set_gcol3 + 1);
+  writeColor(addr_set_gcol4 + 1);
+
+  // addr_pick_line_end
+  //    jmp right_line
+  //    jmp end_lines
+  if(again)
+  {
+    writeROM(addr_pick_continue + 1, LO_JUMP_BYTE(addr_right_line));
+    writeROM(addr_pick_continue + 2, HI_JUMP_BYTE(addr_right_line));
+  }
+  else
+  {
+    writeROM(addr_pick_continue + 1, LO_JUMP_BYTE(addr_end_lines));
+    writeROM(addr_pick_continue + 2, HI_JUMP_BYTE(addr_end_lines));
+  }
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::fill_addr_end_lines()
+{
+  writeAudio(addr_set_aud_endlines + 1);
+
+  if(!myOdd)
+    myFirstAudioVal = myStream.readAudio();
+
+  // keep at overscan=29, vblank=36
+  //      or overscan=30, vblank=36 + 1 blank line
+
+  if(myOdd)
+  {
+    writeROM(addr_set_overscan_size + 1, 29);
+    writeROM(addr_set_vblank_size + 1, 36);
+
+    writeROM(addr_pick_extra_lines + 1, 0);
+  }
+  else
+  {
+    writeROM(addr_set_overscan_size + 1, 30);
+    writeROM(addr_set_vblank_size + 1, 36);
+
+    // extra line after vblank
+    writeROM(addr_pick_extra_lines + 1, 1);
+  }
+
+  if(!myBufferIndex)
+  {
+    writeROM(addr_pick_transport + 1, LO_JUMP_BYTE(addr_transport_direction));
+    writeROM(addr_pick_transport + 2, HI_JUMP_BYTE(addr_transport_direction));
+  }
+  else
+  {
+    writeROM(addr_pick_transport + 1, LO_JUMP_BYTE(addr_transport_buttons));
+    writeROM(addr_pick_transport + 2, HI_JUMP_BYTE(addr_transport_buttons));
+  }
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::fill_addr_blank_lines()
+{
+  // version number
+  myStream.readVersion();
+  myStream.readVersion();
+  myStream.readVersion();
+  myStream.readVersion();
+
+  // frame number
+  myStream.readFrame();
+  myStream.readFrame();
+  uInt8 v = myStream.readFrame();
+
+  // make sure we're in sync with frame data
+  myOdd = (v & 1);
+
+  // 30 overscan
+  // 3 vsync
+  // 37 vblank
+
+  if(myOdd)
+  {
+    writeAudioData(addr_audio_bank + 0, myFirstAudioVal);
+    for(uInt8 i = 1; i < (BLANK_LINE_SIZE + 1); i++)
+      writeAudio(addr_audio_bank + i);
+  }
+  else
+  {
+    for(uInt8 i = 0; i < (BLANK_LINE_SIZE -1); i++)
+      writeAudio(addr_audio_bank + i);
+  }
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void MovieCart::runStateMachine()
+{
+  switch(myState)
+  {
+    case 1:
+      if(myA7)
+      {
+        if(myLines == (TIMECODE_HEIGHT-1))
+        {
+          if(myDrawTimeCode)
+          {
+            myDrawTimeCode--;
+            myForceColor = COLOR_BLUE;
+            myStream.startTimeCode();
+          }
+        }
+
+        // label = 12, bars = 7
+        if(myLines == 21)
+        {
+          if(myDrawLevelBars)
+          {
+            myDrawLevelBars--;
+            myForceColor = COLOR_BLUE;
+
+            switch(myMode)
+            {
+              case Mode::Time:
+                myStream.overrideGraph(nullptr);
+                break;
+
+              case Mode::Bright:
+                if(myOdd)
+                  myStream.overrideGraph(brightLabelOdd);
+                else
+                  myStream.overrideGraph(brightLabelEven);
+                break;
+
+              case Mode::Volume:
+              default:
+                if(myOdd)
+                  myStream.overrideGraph(volumeLabelOdd);
+                else
+                  myStream.overrideGraph(volumeLabelEven);
+                break;
+            }
+          }
+        }
+
+        if(myLines == 7)
+        {
+          if(myDrawLevelBars)
+          {
+            uInt8 levelValue = 0;
+
+            switch(myMode)
+            {
+              case Mode::Time:
+                levelValue = 0;
+                break;
+
+              case Mode::Bright:
+                levelValue = myBright;
+                break;
+
+              case Mode::Volume:
+              default:
+                levelValue = myVolume;
+                break;
+            }
+
+            if(myOdd)
+              myStream.overrideGraph(&levelBarsOddData[levelValue * 40]);
+            else
+              myStream.overrideGraph(&levelBarsEvenData[levelValue * 40]);
+          }
+        }
+
+        fill_addr_right_line();
+
+        myLines -= 1;
+        myState = 2;
+      }
+      break;
+
+    case 2:
+      if(!myA7)
+      {
+        if(myLines >= 1)
+        {
+          fill_addr_left_line(1);
+
+          myLines -= 1;
+          myState = 1;
+        }
+        else
+        {
+          fill_addr_left_line(0);
+          fill_addr_end_lines();
+
+          myStream.swapField(myBufferIndex);
+          myStream.blankPartialLines(myOdd);
+
+          myBufferIndex = !myBufferIndex;
+          updateTransport();
+
+          fill_addr_blank_lines();
+
+          myState = 3;
+        }
+      }
+      break;
+
+    case 3:
+      if(myA7)
+      {
+        // hit end? rewind just before end
+        while (myFrameNumber >= 2 &&
+            !myStream.readField(myFrameNumber, myBufferIndex))
+        {
+          myFrameNumber -= 2;
+          myJoyRepeat = 0;
+        }
+
+        myForceColor = 0;
+        myLines = 191;
+        myState = 1;
+      }
+      break;
+
+    default:
+      break;
+  }
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool MovieCart::process(uInt16 address)
+{
+  bool a12 = (address & (1 << 12)) ? 1:0;
+  bool a11 = (address & (1 << 11)) ? 1:0;
+
+  // count a10 pulses
+  bool a10i = (address & (1 << 10));
+  if(a10i && !myA10)
+    myA10_Count++;
+  myA10 = a10i;
+
+  // latch a7 state
+  if(a11)  // a12
+    myA7 = (address & (1 << 7));    // each 128
+
+  switch(myTitleState)
+  {
+    case TitleState::Display:
+      myTitleCycles++;
+      if(myTitleCycles == TITLE_CYCLES)
+      {
+        stopTitleScreen();
+        myTitleState = TitleState::Exiting;
+        myTitleCycles = 0;
+      }
+      break;
+
+    case TitleState::Exiting:
+      if(myA7)
+        myTitleState = TitleState::Stream;
+      break;
+
+    case TitleState::Stream:
+      runStateMachine();
+      break;
+  }
+
+  return a12;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool MovieCart::save(Serializer& out) const
+{
+  try
+  {
+    out.putByteArray(myROM, 1024);
+
+    // title screen state
+    out.putInt(myTitleCycles);
+    out.putInt(static_cast<int>(myTitleState));
+
+    // address info
+    out.putBool(myA7);
+    out.putBool(myA10);
+    out.putByte(myA10_Count);
+
+    // state machine info
+    out.putByte(myState);
+    out.putBool(myPlaying);
+    out.putBool(myOdd);
+    out.putBool(myBufferIndex);
+
+    out.putByte(myLines);
+    out.putInt(myFrameNumber);
+
+    out.putByte(myMode);
+    out.putByte(myBright);
+    out.putByte(myForceColor);
+
+    // expressed in frames
+    out.putByte(myDrawLevelBars);
+    out.putByte(myDrawTimeCode);
+
+    if(!myStream.save(out)) throw;
+    if(!myInputs.save(out)) throw;
+    if(!myLastInputs.save(out)) throw;
+
+    out.putByte(mySpeed);
+    out.putByte(myJoyRepeat);
+    out.putByte(myDirectionValue);
+    out.putByte(myButtonsValue);
+
+    out.putByte(myVolume);
+    // FIXME - determine whether we need to load/save this
+    // const uInt8* myVolumeScale{scales[DEFAULT_LEVEL]};
+    out.putByte(myFirstAudioVal);
+  }
+  catch(...)
+  {
+    return false;
+  }
+  return true;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool MovieCart::load(Serializer& in)
+{
+  try
+  {
+    in.getByteArray(myROM, 1024);
+
+    // title screen state
+    myTitleCycles = in.getInt();
+    myTitleState = static_cast<TitleState>(in.getInt());
+
+    // address info
+    myA7 = in.getBool();
+    myA10 = in.getBool();
+    myA10_Count = in.getByte();
+
+    // state machine info
+    myState = in.getByte();
+    myPlaying = in.getBool();
+    myOdd = in.getBool();
+    myBufferIndex = in.getBool();
+
+    myLines = in.getByte();
+    myFrameNumber = in.getInt();
+
+    myMode = in.getByte();
+    myBright = in.getByte();
+    myForceColor = in.getByte();
+
+    // expressed in frames
+    myDrawLevelBars = in.getByte();
+    myDrawTimeCode = in.getByte();
+
+    if(!myStream.load(in)) throw;
+    if(!myInputs.load(in)) throw;
+    if(!myLastInputs.load(in)) throw;
+
+    mySpeed = in.getByte();
+    myJoyRepeat = in.getByte();
+    myDirectionValue = in.getByte();
+    myButtonsValue = in.getByte();
+
+    myVolume = in.getByte();
+    // FIXME - determine whether we need to load/save this
+    // const uInt8* myVolumeScale{scales[DEFAULT_LEVEL]};
+    myFirstAudioVal = in.getByte();
+  }
+  catch(...)
+  {
+    return false;
+  }
+  return true;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+CartridgeMVC::CartridgeMVC(const string& path, size_t size,
+                           const string& md5, const Settings& settings,
+                           size_t bsSize)
+  : Cartridge(settings, md5),
+    mySize{bsSize},
+    myPath{path}
+{
+  myMovie = make_unique<MovieCart>();
+
+  // not used
+  myImage = make_unique<uInt8[]>(mySize);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+CartridgeMVC::~CartridgeMVC()
+{
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void CartridgeMVC::install(System& system)
+{
+  mySystem = &system;
+
+  // Map all of the accesses to call peek and poke
+  System::PageAccess access(this, System::PageAccessType::READWRITE);
+  for(uInt16 addr = 0x1000; addr < 0x2000; addr += System::PAGE_SIZE)
+    mySystem->setPageAccess(addr, access);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void CartridgeMVC::reset()
+{
+  myMovie->init(myPath);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+const ByteBuffer& CartridgeMVC::getImage(size_t& size) const
+{
+  // not used
+  size = mySize;
+  return myImage;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool CartridgeMVC::patch(uInt16 address, uInt8 value)
+{
+  myMovie->writeROM(address, value);
+  return true;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+uInt8 CartridgeMVC::peek(uInt16 address)
+{
+  myMovie->process(address);
+  return myMovie->readROM(address);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool CartridgeMVC::poke(uInt16 address, uInt8 value)
+{
+  return myMovie->process(address);
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool CartridgeMVC::save(Serializer& out) const
+{
+  try
+  {
+    if(!myMovie->save(out)) throw;
+  }
+  catch(...)
+  {
+    return false;
+  }
+
+  return true;
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+bool CartridgeMVC::load(Serializer& in)
+{
+  try
+  {
+    if(!myMovie->load(in)) throw;
+  }
+  catch(...)
+  {
+    return false;
+  }
+
+  return true;
+}
diff --git a/src/emucore/CartMVC.hxx b/src/emucore/CartMVC.hxx
new file mode 100644
index 000000000..c03101b52
--- /dev/null
+++ b/src/emucore/CartMVC.hxx
@@ -0,0 +1,144 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll
+//  SS  SS   tt           ll   ll
+//  SS     tttttt  eeee   ll   ll   aaaa
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2021 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//============================================================================
+
+#ifndef CARTRIDGEMVC_HXX
+#define CARTRIDGEMVC_HXX
+
+class System;
+class MovieCart;
+
+#include "bspf.hxx"
+#include "Cart.hxx"
+
+/**
+  Implementation of MovieCart.
+  1K of memory is presented on the bus, but is repeated to fill the 4K image space.
+  Contents are dynamically altered with streaming image and audio content as specific
+  128-byte regions are entered.
+  Original implementation: github.com/lodefmode/moviecart
+
+  @author  Rob Bairos
+*/
+class CartridgeMVC : public Cartridge
+{
+  public:
+    static constexpr uInt32
+      MVC_FIELD_SIZE     = 2560,  // round field to nearest 512 byte boundary
+      MVC_FIELD_PAD_SIZE = 4096;  // round to nearest 4K
+
+  public:
+    /**
+      Create a new cartridge using the specified image
+
+      @param path      Path to the ROM image file
+      @param size      The size of the ROM image (<= 2048 bytes)
+      @param md5       The md5sum of the ROM image
+      @param settings  A reference to the various settings (read-only)
+      @param bsSize    The size specified by the bankswitching scheme
+    */
+    CartridgeMVC(const string& path, size_t size, const string& md5,
+                 const Settings& settings, size_t bsSize = 8_KB);
+    ~CartridgeMVC() override;
+
+    /**
+      Reset device to its power-on state
+    */
+    void reset() override;
+
+    /**
+      Install cartridge in the specified system.  Invoked by the system
+      when the cartridge is attached to it.
+
+      @param system The system the device should install itself in
+    */
+    void install(System& system) override;
+
+    /**
+      Access the internal ROM image for this cartridge.
+
+      @param size  Set to the size of the internal ROM image data
+      @return  A reference to the internal ROM image data
+    */
+    const ByteBuffer& getImage(size_t& size) const override;
+
+    /**
+      Patch the cartridge ROM.
+
+      @param address  The ROM address to patch
+      @param value    The value to place into the address
+      @return    Success or failure of the patch operation
+    */
+    bool patch(uInt16 address, uInt8 value) override;
+
+    /**
+      Get the byte at the specified address.
+
+      @return The byte at the specified address
+    */
+    uInt8 peek(uInt16 address) override;
+
+    /**
+      Change the byte at the specified address to the given value
+
+      @param address The address where the value should be stored
+      @param value The value to be stored at the address
+      @return  True if the poke changed the device address space, else false
+    */
+    bool poke(uInt16 address, uInt8 value) override;
+
+    /**
+      Get a descriptor for the device name (used in error checking).
+
+      @return The name of the object
+    */
+    string name() const override { return "CartridgeMVC"; }
+
+    /**
+      Save the current state of this cart to the given Serializer.
+
+      @param out  The Serializer object to use
+      @return  False on any errors, else true
+    */
+    bool save(Serializer& out) const override;
+
+    /**
+      Load the current state of this cart from the given Serializer.
+
+      @param in  The Serializer object to use
+      @return  False on any errors, else true
+    */
+    bool load(Serializer& in) override;
+
+  private:
+    // Currently not used:
+    // Pointer to a dynamically allocated ROM image of the cartridge
+    ByteBuffer myImage{nullptr};
+    size_t mySize{0};
+
+    unique_ptr<MovieCart> myMovie;
+    string myPath;
+
+  private:
+    // Following constructors and assignment operators not supported
+    CartridgeMVC() = delete;
+    CartridgeMVC(const CartridgeMVC&) = delete;
+    CartridgeMVC(CartridgeMVC&&) = delete;
+    CartridgeMVC& operator=(const CartridgeMVC&) = delete;
+    CartridgeMVC& operator=(CartridgeMVC&&) = delete;
+};
+
+#endif
diff --git a/src/emucore/FSNode.cxx b/src/emucore/FSNode.cxx
index b0aa64394..f240ebadc 100644
--- a/src/emucore/FSNode.cxx
+++ b/src/emucore/FSNode.cxx
@@ -17,6 +17,7 @@
 
 #include "FSNodeFactory.hxx"
 #include "FSNode.hxx"
+#include "CartDetector.hxx"
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 FilesystemNode::FilesystemNode(const AbstractFSNodePtr& realNode)
@@ -332,7 +333,7 @@ bool FilesystemNode::rename(const string& newfile)
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-size_t FilesystemNode::read(ByteBuffer& buffer) const
+size_t FilesystemNode::read(ByteBuffer& buffer, size_t size) const
 {
   size_t sizeRead = 0;
 
@@ -341,7 +342,7 @@ size_t FilesystemNode::read(ByteBuffer& buffer) const
     throw runtime_error("File not found/readable");
 
   // First let the private subclass attempt to open the file
-  if (_realNode && (sizeRead = _realNode->read(buffer)) > 0)
+  if (_realNode && (sizeRead = _realNode->read(buffer, size)) > 0)
     return sizeRead;
 
   // Otherwise, the default behaviour is to read from a normal C++ ifstream
@@ -354,6 +355,8 @@ size_t FilesystemNode::read(ByteBuffer& buffer) const
 
     if (sizeRead == 0)
       throw runtime_error("Zero-byte file");
+    else if (size != 0)
+      sizeRead = size;
 
     buffer = make_unique<uInt8[]>(sizeRead);
     in.read(reinterpret_cast<char*>(buffer.get()), sizeRead);
diff --git a/src/emucore/FSNode.hxx b/src/emucore/FSNode.hxx
index d2b9fbc00..8cb84944e 100644
--- a/src/emucore/FSNode.hxx
+++ b/src/emucore/FSNode.hxx
@@ -244,12 +244,13 @@ class FilesystemNode
      * Read data (binary format) into the given buffer.
      *
      * @param buffer  The buffer to contain the data (allocated in this method).
+     * @param size    The amount of data to read (0 means read all data).
      *
      * @return  The number of bytes read (0 in the case of failure)
      *          This method can throw exceptions, and should be used inside
      *          a try-catch block.
      */
-    size_t read(ByteBuffer& buffer) const;
+    size_t read(ByteBuffer& buffer, size_t size = 0) const;
 
     /**
      * Read data (text format) into the given stream.
@@ -438,12 +439,13 @@ class AbstractFSNode
      * Read data (binary format) into the given buffer.
      *
      * @param buffer  The buffer to contain the data (allocated in this method).
+     * @param size    The amount of data to read (0 means read all data).
      *
      * @return  The number of bytes read (0 in the case of failure)
      *          This method can throw exceptions, and should be used inside
      *          a try-catch block.
      */
-    virtual size_t read(ByteBuffer& buffer) const { return 0; }
+    virtual size_t read(ByteBuffer& buffer, size_t size) const { return 0; }
 
     /**
      * Read data (text format) into the given stream.
diff --git a/src/emucore/OSystem.cxx b/src/emucore/OSystem.cxx
index 679e4ed44..fdb1e8cd2 100644
--- a/src/emucore/OSystem.cxx
+++ b/src/emucore/OSystem.cxx
@@ -44,6 +44,7 @@
 #include "MD5.hxx"
 #include "Cart.hxx"
 #include "CartCreator.hxx"
+#include "CartDetector.hxx"
 #include "FrameBuffer.hxx"
 #include "TIASurface.hxx"
 #include "TIAConstants.hxx"
@@ -689,8 +690,16 @@ ByteBuffer OSystem::openROM(const FilesystemNode& rom, string& md5, size_t& size
   // but also adds a properties entry if the one for the ROM doesn't
   // contain a valid name
 
+  // First check if this is a 'streaming' ROM (one where we only read
+  // a portion of the file)
+  size_t sizeToRead = CartDetector::isProbablyMVC(rom);
+
+  // Next check if rom is a valid size
+  // TODO: We should check if ROM is < Cart::maxSize(), but only
+  //       if it's not a ZIP file (that size should be higher; still TBD)
+
   ByteBuffer image;
-  if((size = rom.read(image)) == 0)
+  if((size = rom.read(image, sizeToRead)) == 0)
     return nullptr;
 
   // If we get to this point, we know we have a valid file to open
diff --git a/src/emucore/Serializer.cxx b/src/emucore/Serializer.cxx
index 5f8dbc06d..57657712a 100644
--- a/src/emucore/Serializer.cxx
+++ b/src/emucore/Serializer.cxx
@@ -77,6 +77,14 @@ Serializer::Serializer()
   }
 }
 
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void Serializer::setPosition(size_t pos)
+{
+  myStream->clear();
+  myStream->seekg(pos);
+  myStream->seekp(pos);
+}
+
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 void Serializer::rewind()
 {
@@ -86,11 +94,15 @@ void Serializer::rewind()
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-size_t Serializer::size() const
+size_t Serializer::size()
 {
-  myStream->seekp(0, std::ios::end);
+  std::streampos oldPos = myStream->tellp();
 
-  return myStream->tellp();
+  myStream->seekp(0, std::ios::end);
+  size_t s = myStream->tellp();
+  setPosition(oldPos);
+
+  return s;
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
diff --git a/src/emucore/Serializer.hxx b/src/emucore/Serializer.hxx
index 362977fb7..5f0b28eb1 100644
--- a/src/emucore/Serializer.hxx
+++ b/src/emucore/Serializer.hxx
@@ -59,15 +59,20 @@ class Serializer
     */
     explicit operator bool() const { return myStream != nullptr; }
 
+    /**
+      Sets the read/write location to the given offset in the stream.
+    */
+    void setPosition(size_t pos);
+
     /**
       Resets the read/write location to the beginning of the stream.
     */
     void rewind();
 
     /**
-      Returns the current write pointer location.
+      Returns the current total size of the stream.
     */
-    size_t size() const;
+    size_t size();
 
     /**
       Reads a byte value (unsigned 8-bit) from the current input stream.
@@ -220,13 +225,6 @@ class Serializer
     unique_ptr<iostream> myStream;
 
     static constexpr uInt8 TruePattern = 0xfe, FalsePattern = 0x01;
-
-  private:
-    // Following constructors and assignment operators not supported
-    Serializer(const Serializer&) = delete;
-    Serializer(Serializer&&) = delete;
-    Serializer& operator=(const Serializer&) = delete;
-    Serializer& operator=(Serializer&&) = delete;
 };
 
 #endif
diff --git a/src/emucore/module.mk b/src/emucore/module.mk
index 906aa8dc3..0eff6a02b 100644
--- a/src/emucore/module.mk
+++ b/src/emucore/module.mk
@@ -48,6 +48,7 @@ MODULE_OBJS := \
         src/emucore/CartFC.o \
         src/emucore/CartFE.o \
         src/emucore/CartMDM.o \
+        src/emucore/CartMVC.o \
         src/emucore/CartSB.o \
         src/emucore/CartTVBoy.o \
         src/emucore/CartUA.o \
diff --git a/src/libretro/FSNodeLIBRETRO.cxx b/src/libretro/FSNodeLIBRETRO.cxx
index 12c377ed6..cb4d24011 100644
--- a/src/libretro/FSNodeLIBRETRO.cxx
+++ b/src/libretro/FSNodeLIBRETRO.cxx
@@ -92,7 +92,7 @@ AbstractFSNodePtr FilesystemNodeLIBRETRO::getParent() const
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-size_t FilesystemNodeLIBRETRO::read(ByteBuffer& image) const
+size_t FilesystemNodeLIBRETRO::read(ByteBuffer& image, size_t) const
 {
   image = make_unique<uInt8[]>(Cartridge::maxSize());
 
diff --git a/src/libretro/FSNodeLIBRETRO.hxx b/src/libretro/FSNodeLIBRETRO.hxx
index 5dd17d0d7..a7fcb211d 100644
--- a/src/libretro/FSNodeLIBRETRO.hxx
+++ b/src/libretro/FSNodeLIBRETRO.hxx
@@ -49,7 +49,7 @@ class FilesystemNodeLIBRETRO : public AbstractFSNode
     bool getChildren(AbstractFSList& list, ListMode mode) const override;
     AbstractFSNodePtr getParent() const override;
 
-    size_t read(ByteBuffer& image) const override;
+    size_t read(ByteBuffer& image, size_t) const override;
 
   protected:
     string _name;
diff --git a/src/libretro/Makefile.common b/src/libretro/Makefile.common
index 9300df604..924db2ef2 100644
--- a/src/libretro/Makefile.common
+++ b/src/libretro/Makefile.common
@@ -86,6 +86,7 @@ SOURCES_CXX := \
 	$(CORE_DIR)/emucore/CartFC.cxx \
 	$(CORE_DIR)/emucore/CartFE.cxx \
 	$(CORE_DIR)/emucore/CartMDM.cxx \
+	$(CORE_DIR)/emucore/CartMVC.cxx \
 	$(CORE_DIR)/emucore/CartMNetwork.cxx \
 	$(CORE_DIR)/emucore/CartSB.cxx \
 	$(CORE_DIR)/emucore/CartTVBoy.cxx \
diff --git a/src/macos/stella.xcodeproj/project.pbxproj b/src/macos/stella.xcodeproj/project.pbxproj
index e68ce8f32..330ac6491 100644
--- a/src/macos/stella.xcodeproj/project.pbxproj
+++ b/src/macos/stella.xcodeproj/project.pbxproj
@@ -455,6 +455,8 @@
 		DC8C1BB114B25DE7006440EE /* MindLink.cxx in Sources */ = {isa = PBXBuildFile; fileRef = DC8C1BAB14B25DE7006440EE /* MindLink.cxx */; };
 		DC8C1BB214B25DE7006440EE /* MindLink.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC8C1BAC14B25DE7006440EE /* MindLink.hxx */; };
 		DC8CF9BD17C15A27004B533D /* ConsoleMediumFont.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC8CF9BC17C15A27004B533D /* ConsoleMediumFont.hxx */; };
+		DC911C7526333B9200666AC0 /* CartMVC.cxx in Sources */ = {isa = PBXBuildFile; fileRef = DC911C7326333B9100666AC0 /* CartMVC.cxx */; };
+		DC911C7626333B9200666AC0 /* CartMVC.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC911C7426333B9100666AC0 /* CartMVC.hxx */; };
 		DC932D440F278A5200FEFEFC /* DefProps.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC932D3F0F278A5200FEFEFC /* DefProps.hxx */; };
 		DC932D450F278A5200FEFEFC /* Serializable.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC932D400F278A5200FEFEFC /* Serializable.hxx */; };
 		DC932D460F278A5200FEFEFC /* SerialPort.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC932D410F278A5200FEFEFC /* SerialPort.hxx */; };
@@ -1266,6 +1268,8 @@
 		DC8C1BAB14B25DE7006440EE /* MindLink.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = MindLink.cxx; sourceTree = "<group>"; };
 		DC8C1BAC14B25DE7006440EE /* MindLink.hxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = MindLink.hxx; sourceTree = "<group>"; };
 		DC8CF9BC17C15A27004B533D /* ConsoleMediumFont.hxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = ConsoleMediumFont.hxx; sourceTree = "<group>"; };
+		DC911C7326333B9100666AC0 /* CartMVC.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = CartMVC.cxx; sourceTree = "<group>"; };
+		DC911C7426333B9100666AC0 /* CartMVC.hxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = CartMVC.hxx; sourceTree = "<group>"; };
 		DC932D3F0F278A5200FEFEFC /* DefProps.hxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = DefProps.hxx; sourceTree = "<group>"; };
 		DC932D400F278A5200FEFEFC /* Serializable.hxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = Serializable.hxx; sourceTree = "<group>"; };
 		DC932D410F278A5200FEFEFC /* SerialPort.hxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = SerialPort.hxx; sourceTree = "<group>"; };
@@ -2056,6 +2060,8 @@
 				DC6A18FB19B3E67A00DEB242 /* CartMDM.hxx */,
 				DC71EA9B1FDA06D2008827CB /* CartMNetwork.cxx */,
 				DC71EA9C1FDA06D2008827CB /* CartMNetwork.hxx */,
+				DC911C7326333B9100666AC0 /* CartMVC.cxx */,
+				DC911C7426333B9100666AC0 /* CartMVC.hxx */,
 				DC0984830D3985160073C852 /* CartSB.cxx */,
 				DC0984840D3985160073C852 /* CartSB.hxx */,
 				DC84397A247B294D00C6A4FC /* CartTVBoy.cxx */,
@@ -2936,6 +2942,7 @@
 				DC3EE8631E2C0E6D00905161 /* inffast.h in Headers */,
 				DC676A501729A0B000E4E73D /* CartE0Widget.hxx in Headers */,
 				DC676A521729A0B000E4E73D /* CartE7Widget.hxx in Headers */,
+				DC911C7626333B9200666AC0 /* CartMVC.hxx in Headers */,
 				DC676A541729A0B000E4E73D /* CartFA2Widget.hxx in Headers */,
 				DC676A561729A0B000E4E73D /* CartFEWidget.hxx in Headers */,
 				DC676A5A1729A0B000E4E73D /* CartSBWidget.hxx in Headers */,
@@ -3410,6 +3417,7 @@
 				DCAACAFE188D631500A4D282 /* CartDFSC.cxx in Sources */,
 				DCAACB0E188D636F00A4D282 /* Cart4KSCWidget.cxx in Sources */,
 				DCB60AD02543100900A5C1D2 /* FBBackendSDL2.cxx in Sources */,
+				DC911C7526333B9200666AC0 /* CartMVC.cxx in Sources */,
 				DCAACB10188D636F00A4D282 /* CartBFSCWidget.cxx in Sources */,
 				DCC2FDF6255EB82500FA5E81 /* ToolTip.cxx in Sources */,
 				DCAACB12188D636F00A4D282 /* CartBFWidget.cxx in Sources */,
diff --git a/src/windows/Stella.vcxproj b/src/windows/Stella.vcxproj
old mode 100644
new mode 100755
index a091cf4da..d16885fff
--- a/src/windows/Stella.vcxproj
+++ b/src/windows/Stella.vcxproj
@@ -759,6 +759,7 @@
     <ClCompile Include="..\emucore\CartMDM.cxx" />
     <ClCompile Include="..\emucore\CartMNetwork.cxx" />
     <ClCompile Include="..\emucore\CartE78K.cxx" />
+    <ClCompile Include="..\emucore\CartMVC.cxx" />
     <ClCompile Include="..\emucore\CartTVBoy.cxx" />
     <ClCompile Include="..\emucore\CartWD.cxx" />
     <ClCompile Include="..\emucore\CompuMate.cxx" />
@@ -1829,6 +1830,7 @@
     <ClInclude Include="..\emucore\CartMDM.hxx" />
     <ClInclude Include="..\emucore\CartMNetwork.hxx" />
     <ClInclude Include="..\emucore\CartE78K.hxx" />
+    <ClInclude Include="..\emucore\CartMVC.hxx" />
     <ClInclude Include="..\emucore\CartTVBoy.hxx" />
     <ClInclude Include="..\emucore\CartWD.hxx" />
     <ClInclude Include="..\emucore\CompuMate.hxx" />
diff --git a/src/windows/Stella.vcxproj.filters b/src/windows/Stella.vcxproj.filters
index 46033b99a..7bd3bbeca 100644
--- a/src/windows/Stella.vcxproj.filters
+++ b/src/windows/Stella.vcxproj.filters
@@ -1110,6 +1110,9 @@
     <ClCompile Include="..\common\repository\CompositeKeyValueRepository.cxx">
       <Filter>Source Files\repository</Filter>
     </ClCompile>
+    <ClCompile Include="..\emucore\CartMVC.cxx">
+      <Filter>Source Files\emucore</Filter>
+    </ClCompile>
     <ClCompile Include="..\emucore\CartARM.cxx">
       <Filter>Source Files\emucore</Filter>
     </ClCompile>
@@ -2288,6 +2291,9 @@
     <ClInclude Include="..\emucore\OSystemStandalone.hxx">
       <Filter>Header Files\emucore</Filter>
     </ClInclude>
+    <ClInclude Include="..\emucore\CartMVC.hxx">
+      <Filter>Header Files\emucore</Filter>
+    </ClInclude>
     <ClInclude Include="..\emucore\CartARM.hxx">
       <Filter>Header Files\emucore</Filter>
     </ClInclude>
@@ -2306,4 +2312,4 @@
       <Filter>Resource Files</Filter>
     </ResourceCompile>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/test/roms/bankswitching/MVC/20centuryfox.bin b/test/roms/bankswitching/MVC/20centuryfox.bin
new file mode 100755
index 000000000..820241b3f
Binary files /dev/null and b/test/roms/bankswitching/MVC/20centuryfox.bin differ
diff --git a/test/roms/bankswitching/MVC/cronkite.bin b/test/roms/bankswitching/MVC/cronkite.bin
new file mode 100755
index 000000000..12ee99f30
Binary files /dev/null and b/test/roms/bankswitching/MVC/cronkite.bin differ
diff --git a/test/roms/bankswitching/MVC/dancer.bin b/test/roms/bankswitching/MVC/dancer.bin
new file mode 100755
index 000000000..0df041e90
Binary files /dev/null and b/test/roms/bankswitching/MVC/dancer.bin differ
diff --git a/test/roms/bankswitching/MVC/lion.bin b/test/roms/bankswitching/MVC/lion.bin
new file mode 100755
index 000000000..5b17f6b55
Binary files /dev/null and b/test/roms/bankswitching/MVC/lion.bin differ
diff --git a/test/roms/bankswitching/MVC/street.bin b/test/roms/bankswitching/MVC/street.bin
new file mode 100755
index 000000000..c4354e3e1
Binary files /dev/null and b/test/roms/bankswitching/MVC/street.bin differ
diff --git a/test/roms/bankswitching/MVC/testpattern.bin b/test/roms/bankswitching/MVC/testpattern.bin
new file mode 100755
index 000000000..00d3a65f1
Binary files /dev/null and b/test/roms/bankswitching/MVC/testpattern.bin differ