diff --git a/BizHawk.Emulation/Consoles/Nintendo/GBA/LibMeteor.cs b/BizHawk.Emulation/Consoles/Nintendo/GBA/LibMeteor.cs
index 9c73e83766..ae7168156b 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/GBA/LibMeteor.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/GBA/LibMeteor.cs
@@ -63,5 +63,19 @@ namespace BizHawk.Emulation.Consoles.Nintendo.GBA
 		/// <param name="datalen">length of data in bytes</param>
 		[DllImport("libmeteor.dll", CallingConvention = CallingConvention.Cdecl)]
 		public static extern void libmeteor_loadbios(byte[] data, uint datalen);
+
+		/// <summary>
+		/// core callback to print meaningful (or meaningless) log messages
+		/// </summary>
+		/// <param name="msg">message to be printed</param>
+		[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+		public delegate void MessageCallback(string msg);
+
+		/// <summary>
+		/// set callback for log messages.  this can (and should) be called first
+		/// </summary>
+		/// <param name="cb"></param>
+		[DllImport("libmeteor.dll", CallingConvention = CallingConvention.Cdecl)]
+		public static extern void libmeteor_setmessagecallback(MessageCallback cb);
 	}
 }
diff --git a/BizHawk.Emulation/Consoles/Nintendo/GBA/Meteor.cs b/BizHawk.Emulation/Consoles/Nintendo/GBA/Meteor.cs
index a0f3da4b41..fc5cfef4ac 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/GBA/Meteor.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/GBA/Meteor.cs
@@ -125,22 +125,26 @@ namespace BizHawk.Emulation.Consoles.Nintendo.GBA
 		}
 
 		static GBA attachedcore;
+		LibMeteor.MessageCallback messagecallback;
 
 		void Init()
 		{
 			if (attachedcore != null)
 				attachedcore.Dispose();
 
+			messagecallback = (str) => Console.Write(str.Replace("\n","\r\n"));
+			LibMeteor.libmeteor_setmessagecallback(messagecallback);
+
 			LibMeteor.libmeteor_init();
 			videobuffer = new int[240 * 160];
 			videohandle = GCHandle.Alloc(videobuffer, GCHandleType.Pinned);
-			soundbuffer = new short[2048];
+			soundbuffer = new short[2048]; // nominal length of one frame is something like 1480 shorts?
 			soundhandle = GCHandle.Alloc(soundbuffer, GCHandleType.Pinned);
 
 			if (!LibMeteor.libmeteor_setbuffers
 				(videohandle.AddrOfPinnedObject(), (uint)(sizeof(int) * videobuffer.Length),
 				soundhandle.AddrOfPinnedObject(), (uint)(sizeof(short) * soundbuffer.Length)))
-				throw new Exception("libmeteor_setbuffers() returned false!");
+				throw new Exception("libmeteor_setbuffers() returned false??");
 
 			attachedcore = this;
 		}
diff --git a/BizHawk.MultiClient/output/dll/libmeteor.dll b/BizHawk.MultiClient/output/dll/libmeteor.dll
index 54d5a771fe..bb3bdf477d 100644
Binary files a/BizHawk.MultiClient/output/dll/libmeteor.dll and b/BizHawk.MultiClient/output/dll/libmeteor.dll differ
diff --git a/libmeteor/cinterface.cpp b/libmeteor/cinterface.cpp
index 530f3352ae..ff8957f675 100644
--- a/libmeteor/cinterface.cpp
+++ b/libmeteor/cinterface.cpp
@@ -1,8 +1,28 @@
 #include "ameteor.hpp"
 #include "ameteor/cartmem.hpp"
+#include "source/debug.hpp"
 
 #define EXPORT extern "C" __declspec(dllexport)
 
+void (*messagecallback)(const char *msg) = NULL;
+
+EXPORT void libmeteor_setmessagecallback(void (*callback)(const char *msg))
+{
+	messagecallback = callback;
+	print_bizhawk("libmeteor message stream operational.");
+}
+
+void print_bizhawk(const char *msg)
+{
+	if (messagecallback)
+		messagecallback(msg);
+}
+void print_bizhawk(std::string &msg)
+{
+	if (messagecallback)
+		messagecallback(msg.c_str());
+}
+
 EXPORT void libmeteor_reset()
 {
 	AMeteor::Reset(AMeteor::UNIT_ALL ^ AMeteor::UNIT_MEMORY_BIOS);
@@ -56,7 +76,7 @@ EXPORT int libmeteor_setbuffers(uint32_t *vid, unsigned vidlen, int16_t *aud, un
 		return 0;
 	videobuff = vid;
 	soundbuff = aud;
-	soundbuffend = soundbuff + audlen;
+	soundbuffend = soundbuff + audlen / sizeof(int16_t);
 	libmeteor_emptysound();
 	return 1;
 }
diff --git a/libmeteor/libmeteor.vcxproj b/libmeteor/libmeteor.vcxproj
index 63084fdf02..af4244960e 100644
--- a/libmeteor/libmeteor.vcxproj
+++ b/libmeteor/libmeteor.vcxproj
@@ -51,7 +51,8 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;LIBMETEOR_EXPORTS;%(PreprocessorDefinitions);METDEBUG</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;LIBMETEOR_EXPORTS;%(PreprocessorDefinitions);METDEBUG;METDEBUGLOG</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4800;4396</DisableSpecificWarnings>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -67,6 +68,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;LIBMETEOR_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4800;4396</DisableSpecificWarnings>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
diff --git a/libmeteor/source/debug.hpp b/libmeteor/source/debug.hpp
index 350cacd45c..3e77a7e181 100644
--- a/libmeteor/source/debug.hpp
+++ b/libmeteor/source/debug.hpp
@@ -25,6 +25,10 @@
 // for abort macro
 #include "ameteor.hpp"
 
+// from cinterface.cpp
+void print_bizhawk(const char *msg);
+void print_bizhawk(std::string &msg);
+
 #if 0
 #define met_abort(str) \
 	{ \
@@ -38,7 +42,7 @@
 #endif
 #ifdef METDEBUG
 #include <sstream>
-extern "C" int __stdcall MessageBoxA(int, const char *, const char *, int);
+//extern "C" int __stdcall MessageBoxA(int, const char *, const char *, int);
 #define met_abort(_str) if(true)\
 	{ \
 		std::stringstream _zisrny; \
@@ -47,7 +51,7 @@ extern "C" int __stdcall MessageBoxA(int, const char *, const char *, int);
 		<< IOS_ADD << ::AMeteor::_cpu.Reg(15) << "\n[r15] = " << IOS_ADD \
 		<< ::AMeteor::_memory.Read32(::AMeteor::_cpu.Reg(15)) \
 		<< "\nFlag T : " << ::AMeteor::_cpu.ICpsr().thumb << std::endl; \
-		MessageBoxA(NULL, _zisrny.str().c_str(), "FUCK!", 0); \
+		print_bizhawk(_zisrny.str().c_str()); \
 	}
 
 #else
@@ -60,13 +64,18 @@ extern "C" int __stdcall MessageBoxA(int, const char *, const char *, int);
 #if defined METDEBUG && defined METDEBUGLOG
 //XXX
 #	define MYDEBUG
-#	define debug(str) \
-		STDBG << str << std::endl
-#	define debug_(str) \
-		STDBG << str
+#	define debug(_str) \
+	{ \
+		std::stringstream _zisrny; \
+		_zisrny << _str << std::endl; \
+		print_bizhawk(_zisrny.str()); \
+	}
+		//STDBG << str << std::endl
+//#	define debug_(str) \
+//		STDBG << str
 #else
 #	define debug(s) {}
-#	define debug_(s) {}
+//#	define debug_(s) {}
 #endif
 
 #define IOS_ADD \