diff --git a/Source/Project64/N64 System/Mips/Dma.cpp b/Source/Project64/N64 System/Mips/Dma.cpp
index cd09cbe47..b802f3dd1 100644
--- a/Source/Project64/N64 System/Mips/Dma.cpp	
+++ b/Source/Project64/N64 System/Mips/Dma.cpp	
@@ -35,12 +35,18 @@ void CDMA::OnFirstDMA()
 void CDMA::PI_DMA_READ()
 {
 //	PI_STATUS_REG |= PI_STATUS_DMA_BUSY;
+	DWORD PI_RD_LEN_REG = ((g_Reg->PI_RD_LEN_REG) & 0x00FFFFFFul) + 1;
 
-	if ( g_Reg->PI_DRAM_ADDR_REG + g_Reg->PI_RD_LEN_REG + 1 > g_MMU->RdramSize()) 
+	if ((PI_RD_LEN_REG & 1) != 0)
+	{
+		PI_RD_LEN_REG += 1; 
+	}
+	
+	if ( g_Reg->PI_DRAM_ADDR_REG + PI_RD_LEN_REG > g_MMU->RdramSize()) 
 	{
 		if (bHaveDebugger())
 		{
-			g_Notify->DisplayError(L"PI_DMA_READ not in Memory: %08X", g_Reg->PI_DRAM_ADDR_REG + g_Reg->PI_RD_LEN_REG + 1);
+			g_Notify->DisplayError(L"PI_DMA_READ not in Memory: %08X", g_Reg->PI_DRAM_ADDR_REG + PI_RD_LEN_REG);
 		}
 		g_Reg->PI_STATUS_REG &= ~PI_STATUS_DMA_BUSY;
 		g_Reg->MI_INTR_REG |= MI_INTR_PI;
@@ -58,9 +64,9 @@ void CDMA::PI_DMA_READ()
 		VirtualProtect(ROM, g_Rom->GetRomSize(), PAGE_READWRITE, &OldProtect);
 
 		g_Reg->PI_CART_ADDR_REG -= 0x10000000;
-		if (g_Reg->PI_CART_ADDR_REG + g_Reg->PI_RD_LEN_REG < g_Rom->GetRomSize())
+		if (g_Reg->PI_CART_ADDR_REG + PI_RD_LEN_REG < g_Rom->GetRomSize())
 		{
-			for (i = 0; i < g_Reg->PI_RD_LEN_REG; i++)
+			for (i = 0; i < PI_RD_LEN_REG; i++)
 			{
 				*(ROM + ((g_Reg->PI_CART_ADDR_REG + i) ^ 3)) = *(RDRAM + ((g_Reg->PI_DRAM_ADDR_REG + i) ^ 3));
 			}
@@ -100,7 +106,7 @@ void CDMA::PI_DMA_READ()
 			m_Sram.DmaToSram(
 				g_MMU->Rdram() + g_Reg->PI_DRAM_ADDR_REG,
 				g_Reg->PI_CART_ADDR_REG - 0x08000000,
-				g_Reg->PI_RD_LEN_REG + 1
+				PI_RD_LEN_REG
 			);
 			g_Reg->PI_STATUS_REG &= ~PI_STATUS_DMA_BUSY;
 			g_Reg->MI_INTR_REG |= MI_INTR_PI;
@@ -112,7 +118,7 @@ void CDMA::PI_DMA_READ()
 			m_FlashRam.DmaToFlashram(
 				g_MMU->Rdram()+g_Reg->PI_DRAM_ADDR_REG,
 				g_Reg->PI_CART_ADDR_REG - 0x08000000,
-				g_Reg->PI_RD_LEN_REG + 1
+				PI_RD_LEN_REG
 			);
 			g_Reg->PI_STATUS_REG &= ~PI_STATUS_DMA_BUSY;
 			g_Reg->MI_INTR_REG |= MI_INTR_PI;