Video playback problems

[codfaceftw]

I've been having some problems with some of my .avi files, but I can't figure out what could have caused it.

I initially thought it was something to do with the encoding--I could have deleted something by accident, an update for Winamp3 was required, etc.--but after downloading the latest version of Winamp and nigh unto a gazillion codec packs, the problem hasn't gone away. D:

The audio is fine, but the image turns pixellated and drags... It's a bit hard for me to describe. Sample file: It goes from this to this. But it's fine immediately afterwards... And the dragging looks something like this. 1 2 3 4 5 6 7 8
[Sorry for the link spam. XD]

All of my files were fine initially, but then all of a sudden... Some exploded. It was really quite sad. And the weirdest thing about it all, to me, is that it's only bits and pieces of a file that are messed up. The rest is in perfectly good condition.


...And if this has been covered somewhere else, I apologize. >__< It's a bit hard to search for something when you don't know what it is you're searching for.

EDIT: I just checked, and WMP seems to have the same problem. If that tells you anything... I've also downloaded VLC Media Player, which handles the files fine, but I would reeeally like to solve this. *angst!*