Sometimes when I try to split a large DivX file, 700Mb movie, all sound ends up on the first part. Resulting in half amount of video data trying to run with all sound data making video slow and jerky and sound normal, the second part has normal video and no sound at all.

I use VirtualDub to split my files, and since some files work just fine splitting it’s not the procedure that’s wrong, it must be something with the files. Not necessarily something wrong, I can watch them but they somhow won't let me split the sound..?

Anybody have a clue to what might cause the problem?