diff --git a/src/boards/super24.c b/src/boards/super24.c
index 5805dcc..012d76b 100644
--- a/src/boards/super24.c
+++ b/src/boards/super24.c
@@ -24,36 +24,78 @@
 static uint8 *CHRRAM = NULL;
 static int masko8[8] = { 63, 31, 15, 1, 3, 0, 0, 0 };
 
+static uint8 oldversion = 0;
+// this mapper is 176 rip mapper.
+
 static void Super24PW(uint32 A, uint8 V) {
-	uint32 NV = V & masko8[EXPREGS[0] & 7];
-	NV |= (EXPREGS[1] << 1);
-	setprg8r((NV >> 6) & 0xF, A, NV);
+	if (oldversion == 1)
+	{
+		uint32 NV = V & masko8[EXPREGS[0] & 7];
+		NV |= (EXPREGS[1] << 1);
+		setprg8r((NV >> 6) & 0xF, A, NV);
+	}
+	else
+	{
+		setprg8(A, (EXPREGS[1] << 1) | (V & masko8[EXPREGS[0] & 0x7]));
+	}
+
 }
 
 static void Super24CW(uint32 A, uint8 V) {
-	if (EXPREGS[0] & 0x20)
-		setchr1r(0x10, A, V);
-	else {
-		uint32 NV = V | (EXPREGS[2] << 3);
-		setchr1r((NV >> 9) & 0xF, A, NV);
+	if (oldversion == 1)
+	{
+		if (EXPREGS[0] & 0x20)
+			setchr1r(0x10, A, V);
+		else {
+			uint32 NV = V | (EXPREGS[2] << 3);
+			setchr1r((NV >> 9) & 0xF, A, NV);
+		}
+	}
+	else
+	{
+		if (EXPREGS[0] & 0x20)
+			setchr1r(0x10, A, (EXPREGS[2] << 3) | V);
+		else
+			setchr1r(0x00, A, (EXPREGS[2] << 3) | V);
 	}
 }
 
 static DECLFW(Super24Write) {
-	switch (A) {
-	case 0x5FF0:
-		EXPREGS[0] = V;
-		FixMMC3PRG(MMC3_cmd);
-		FixMMC3CHR(MMC3_cmd);
-		break;
-	case 0x5FF1:
-		EXPREGS[1] = V;
-		FixMMC3PRG(MMC3_cmd);
-		break;
-	case 0x5FF2:
-		EXPREGS[2] = V;
-		FixMMC3CHR(MMC3_cmd);
-		break;
+	if (oldversion == 1)
+	{
+		switch (A) {
+		case 0x5FF0:
+			EXPREGS[0] = V;
+			FixMMC3PRG(MMC3_cmd);
+			FixMMC3CHR(MMC3_cmd);
+			break;
+		case 0x5FF1:
+			EXPREGS[1] = V;
+			FixMMC3PRG(MMC3_cmd);
+			break;
+		case 0x5FF2:
+			EXPREGS[2] = V;
+			FixMMC3CHR(MMC3_cmd);
+			break;
+		}
+	}
+	else
+	{
+		switch (A & 0xF003) {
+		case 0x5000:
+			EXPREGS[0] = V;
+			FixMMC3PRG(MMC3_cmd);
+			FixMMC3CHR(MMC3_cmd);
+			break;
+		case 0x5001:
+			EXPREGS[1] = V;
+			FixMMC3PRG(MMC3_cmd);
+			break;
+		case 0x5002:
+			EXPREGS[2] = V;
+			FixMMC3CHR(MMC3_cmd);
+			break;
+		}
 	}
 }
 
@@ -80,7 +122,37 @@ static void Super24Close(void) {
 }
 
 void Super24_Init(CartInfo *info) {
-	GenMMC3_Init(info, 128, 256, 0, 0);
+
+	if (oldversion == 0)
+	{
+		uint32 _PRGsize = 0;
+		uint32 _CHRsize = 0;
+		int i = 0;
+		for (i = 0;i < 4;i++)
+		{
+			_PRGsize += PRGsize[i];
+			_CHRsize += CHRsize[i];
+		}
+		uint8* _CHRptr = (uint8*)FCEU_gmalloc(_CHRsize);
+		uint32 _CHROffset = 0;
+		for (i = 0;i < 4;i++)
+		{
+			memcpy(&_CHRptr[_CHROffset], CHRptr[i], CHRsize[i]);
+			_CHROffset += CHRsize[i];
+		}
+
+		uint8* _PRGptr = (uint8*)FCEU_gmalloc(_PRGsize);
+		uint32 _PRGOffset = 0;
+		for (i = 0;i < 4;i++)
+		{
+			memcpy(&_PRGptr[_PRGOffset], PRGptr[i], PRGsize[i]);
+			_PRGOffset += PRGsize[i];
+		}
+		SetupCartCHRMapping(0, _CHRptr, _CHRsize, 0);
+		SetupCartPRGMapping(0, _PRGptr, _PRGsize, 0);
+	}
+
+	GenMMC3_Init(info, 512, 512, 0, 0);
 	info->Power = Super24Power;
 	info->Reset = Super24Reset;
 	info->Close = Super24Close;
diff --git a/src/unif.c b/src/unif.c
index 51502a4..b7f62a7 100644
--- a/src/unif.c
+++ b/src/unif.c
@@ -517,7 +517,7 @@ static BMAPPING bmap[] = {
 	{ "Sachen-8259C", 139, S8259C_Init, 0 },
 	{ "Sachen-8259D", 137, S8259D_Init, 0 },
 	{ "Super24in1SC03", 176, Super24_Init, 0 },
-	{ "Super24in1SC03", 176, Super24_Init, 0 },
+	{ "SUPER24IN1SC03", 176, Super24_Init, 0 },
 	{ "SuperHIK8in1", 45, Mapper45_Init, 0 },
 	{ "Supervision16in1", 53, Supervision16_Init, 0 },
 	{ "T-227-1", NO_INES, BMCT2271_Init, 0 },