diff --git a/360/xdk360_video.cpp b/360/xdk360_video.cpp
index 9bfaf7183c..94c5b7074b 100644
--- a/360/xdk360_video.cpp
+++ b/360/xdk360_video.cpp
@@ -108,6 +108,7 @@ const DWORD g_MapLinearToSrgbGpuFormat[] =
 
 struct XPR_HEADER
 {
+   unsigned long dwMagic;
    unsigned long dwHeaderSize;
    unsigned long dwDataSize;
 };
@@ -164,6 +165,13 @@ HRESULT PackedResource::Create( const char * strFilename )
         return E_FAIL;
     }
 
+    if( xprh.dwMagic != XPR2_MAGIC_VALUE )
+    {
+       RARCH_ERR( "Invalid Xbox Packed Resource (.xpr) file: Magic = 0x%08lx.\n", xprh.dwMagic );
+       CloseHandle( hFile );
+       return E_FAIL;
+    }
+
     // Compute memory requirements
     m_dwSysMemDataSize = xprh.dwHeaderSize;
     m_dwVidMemDataSize = xprh.dwDataSize;