I am using DVDFab to copy a Seinfelt (Season 7, 4 DVDs) to my iPod.
The issue is that DVD 1 and 2 works without problem.
But DVD 3 and 4 does not.
The problem seems to be that the initial section of each episode is played up very fast, and then for the rest of the section the sound id not in sync with the video itself.
The really irritating part of this is that this is for some of the episodes on DVD 3 and 4, not all.
I have installed DVDFab on a different computer with the same result.