diff --git a/pcsx2/IPU/IPU.cpp b/pcsx2/IPU/IPU.cpp
index 3ac8db1d12..51f7a0f3b9 100644
--- a/pcsx2/IPU/IPU.cpp
+++ b/pcsx2/IPU/IPU.cpp
@@ -1162,7 +1162,7 @@ void __fastcall ipu_csc(macroblock_8 *mb8, macroblock_rgb32 *rgb32, int sgn)
 
 	if (s_thresh[0] > 0)
 	{
-		for (i = 0; i < 64*4; i++, p += 4)
+		for (i = 0; i < 16*16; i++, p += 4)
 		{
 			if ((p[0] < s_thresh[0]) && (p[1] < s_thresh[0]) && (p[2] < s_thresh[0]))
 				*(u32*)p = 0;
@@ -1172,12 +1172,19 @@ void __fastcall ipu_csc(macroblock_8 *mb8, macroblock_rgb32 *rgb32, int sgn)
 	}
 	else if (s_thresh[1] > 0)
 	{
-		for (i = 0; i < 64*4; i++, p += 4)
+		for (i = 0; i < 16*16; i++, p += 4)
 		{
 			if ((p[0] < s_thresh[1]) && (p[1] < s_thresh[1]) && (p[2] < s_thresh[1]))
 				p[3] = 0x40;
 		}
 	}
+	if (sgn)
+	{
+		for (i = 0; i < 16*16; i++, p += 4)
+		{
+			*(u32*)p ^= 0x808080;
+		}
+	}
 }
 
 void __fastcall ipu_dither(const macroblock_rgb32* rgb32, macroblock_rgb16 *rgb16, int dte)
diff --git a/pcsx2/IPU/mpeg2lib/Mpeg.cpp b/pcsx2/IPU/mpeg2lib/Mpeg.cpp
index 2704b25637..c7c8afca15 100644
--- a/pcsx2/IPU/mpeg2lib/Mpeg.cpp
+++ b/pcsx2/IPU/mpeg2lib/Mpeg.cpp
@@ -1203,7 +1203,7 @@ void mpeg2sliceIDEC(void* pdone)
 				}
 				else
 				{
-					ipu_csc(decoder->mb8, decoder->rgb32, decoder->dte);
+					ipu_csc(decoder->mb8, decoder->rgb32, decoder->sgn);
 					ipu_dither(decoder->rgb32, decoder->rgb16, decoder->dte);
 
 					g_nIPU0Data = 32;