Xbox stopping every few minutes while playing .mp4 files

This appears to be related to me installing windows 8, but I can’t quite be sure. I’m getting the error code 69-c00d002f. All I have to do is back out and then hit resume and it starts playing again fine. Any ideas on how to fix it? It’s pretty annoying trying to watch something.

I wish I could get mp4 files to play . I am on Windows 7 . Codec installed and nothing works.