I am having the same problems. But more so. Other media players won't play certain files. But it is TV as well. Right now, I can't d/l The 4400's latest 2 episodes. I've tried something like 6 different files. They d/l fine, but crash the explorer and the media player when I try to play them.

Another thing I noticed was that if I view the explorer as thumbnails, I can tell which file is corrupted as it won't show anyhting but the media player icon.

I had the same thing happen with some mid season 7 West Wings. Eventually, it all straightened out.

Very bizarre.