diff --git a/Changes.txt b/Changes.txt
index 17f19e37c..d95b01975 100644
--- a/Changes.txt
+++ b/Changes.txt
@@ -68,6 +68,7 @@
   * Several updates to the internal properties database:
       - 'Juno First' ROMs now use an AtariVox/SaveKey when possible
       - 'Astroblast' ROMs now use the paddles by default
+      - 'Star Castle 2600' ROMs added
 
   * Changed key-combo for enabling TIA objects and collisions to be
     toggled on and off with the Alt-period and Shift-Alt-period
diff --git a/src/emucore/Cart.cxx b/src/emucore/Cart.cxx
index 1ee2bcfa7..e2e5f7d35 100644
--- a/src/emucore/Cart.cxx
+++ b/src/emucore/Cart.cxx
@@ -578,8 +578,8 @@ bool Cartridge::isProbablyCV(const uInt8* image, uInt32 size)
   // CV RAM access occurs at addresses $f3ff and $f400
   // These signatures are attributed to the MESS project
   uInt8 signature[2][3] = {
-    { 0x9D, 0xFF, 0xF3 },  // STA $F3FF
-    { 0x99, 0x00, 0xF4 }   // STA $F400
+    { 0x9D, 0xFF, 0xF3 },  // STA $F3FF.X
+    { 0x99, 0x00, 0xF4 }   // STA $F400.Y
   };
   if(searchForBytes(image, size, signature[0], 3, 1))
     return true;
diff --git a/src/emucore/DefProps.hxx b/src/emucore/DefProps.hxx
index 177c96508..b370e83b7 100644
--- a/src/emucore/DefProps.hxx
+++ b/src/emucore/DefProps.hxx
@@ -1128,7 +1128,7 @@ static const char* DefProps[DEF_PROPS_SIZE][21] = {
   { "54785fa29e28aae6038929ba29d33d38", "", "", "Poker Squares (V0.19) (2001) (B. Watson)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
   { "5494b9ee403d9757f0fd1f749e80214a", "Larry Petit", "", "Xenophobe Arcade (2003) (Larry Petit) (Hack)", "Hack of Xenophobe", "Hack", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
   { "54a1c1255ed45eb8f71414dadb1cf669", "Spectravideo", "SA-212", "Mangia' (1983) (Spectravideo)", "", "", "", "", "", "", "", "", "", "", "", "", "", "28", "", "", "" }, 
-  { "54bafc299423f5a50b8bc3a797914706", "SOLID Corp. (D. Scott Williamson)", "CX2655*", "Star Castle 2600 (SolidCorp) (PAL)", "http://starcastle2600.blogspot.com/p/star-castle-2600-story.html", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
+  { "54bafc299423f5a50b8bc3a797914706", "SOLID Corp. (D. Scott Williamson)", "CX2655*", "Star Castle 2600 (SolidCorp) (PAL)", "http://starcastle2600.blogspot.com/p/star-castle-2600-story.html", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "" }, 
   { "54da3b0b3f43f5b37911c135b9432b49", "", "", "Halloween III Revision (Hack)", "Hack of Kaboom!", "Hack", "", "", "", "", "", "", "PADDLES", "", "", "", "", "", "", "", "" }, 
   { "54f7efa6428f14b9f610ad0ca757e26c", "Apollo - Games by Apollo, Steve Stringfellow", "AP-2005", "Shark Attack (1982) (Apollo)", "AKA Lochjaw", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
   { "551a64a945d7d6ece81e9c1047acedbc", "Matthias Jaap", "", "Coffee Cup Soccer (Matthias Jaap) (Hack)", "Hack of Pele's Soccer", "Hack", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
@@ -2774,7 +2774,7 @@ static const char* DefProps[DEF_PROPS_SIZE][21] = {
   { "d97fd5e6e1daacd909559a71f189f14b", "M Network, Steve Crandall, Patricia Lewis Du Long", "MT4646", "Rocky & Bullwinkle (04-20-1983) (M Network) (Prototype)", "", "Prototype", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
   { "d9ab6b67a17da51e5ad13717e93fa2e2", "", "", "Turbo (Coleco) Prototype Fake v0.1 (TJ)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
   { "d9b49f0678776e04916fa5478685a819", "Activision, John Van Ryzin - Ariola", "EAZ-036-04, EAZ-036-04B, EAZ-036-04I - 711 036-720", "H.E.R.O. (1984) (Activision) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
-  { "d9c9cece2e769c7985494b1403a25721", "SOLID Corp. (D. Scott Williamson)", "CX2655*", "Star Castle 2600 (SolidCorp)", "http://starcastle2600.blogspot.com/p/star-castle-2600-story.html", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
+  { "d9c9cece2e769c7985494b1403a25721", "SOLID Corp. (D. Scott Williamson)", "CX2655*", "Star Castle 2600 (SolidCorp)", "http://starcastle2600.blogspot.com/p/star-castle-2600-story.html", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "" }, 
   { "d9da2ae7c7894a29b43b3c6b79f3b7a2", "Atari, Rob Fulop", "CX2633, CX2633P", "Night Driver (1980) (Atari) (PAL) (4K)", "Uses the Paddle Controllers (left only)", "", "", "", "", "", "", "", "PADDLES", "", "", "", "", "", "", "YES", "" }, 
   { "d9fbf1113114fb3a3c97550a0689f10f", "ZiMAG - Emag - Vidco", "713-111 - GN-050", "Pizza Chef (1983) (ZiMAG) (Prototype)", "AKA Pizza Time", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
   { "da0fb2a484d0d2d8f79d6e063c94063d", "", "", "Air Raiders (1982) (Unknown) [a]", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" }, 
diff --git a/src/emucore/stella.pro b/src/emucore/stella.pro
index 6fc13fb74..26f5c6e4b 100644
--- a/src/emucore/stella.pro
+++ b/src/emucore/stella.pro
@@ -19978,6 +19978,7 @@
 "Cartridge.Name" "Star Castle 2600 (SolidCorp)"
 "Cartridge.Note" "http://starcastle2600.blogspot.com/p/star-castle-2600-story.html"
 "Cartridge.Rarity" "Homebrew"
+"Display.Phosphor" "YES"
 ""
 
 "Cartridge.MD5" "54bafc299423f5a50b8bc3a797914706"
@@ -19986,4 +19987,5 @@
 "Cartridge.Name" "Star Castle 2600 (SolidCorp) (PAL)"
 "Cartridge.Note" "http://starcastle2600.blogspot.com/p/star-castle-2600-story.html"
 "Cartridge.Rarity" "Homebrew"
+"Display.Phosphor" "YES"
 ""