This is kind of just an anololy: I can play a file w/ 5.1 audio encoded, but if I play a DVD, it treats it like TV and as a 2.1.

I have a audio card just doing direct spdif to the receiver which detects and plays it perfectly, except the DVDs. I even have the patch wire running from the CD playeer to the audio card.

Maybe the nVidia decoders are getting mixed up somehow, since the video files are divx/xvid usually, so handled by other decoders. But I'm still open to XP settings or the hardware arrangement somehow.

Very low priority as I don't own a lot of DVDs, but I had it right before, so it's just eating at me a little.