I have now ripped over 200 movies using Generic (xvid + source audio). The following movies are giving me lip sync issues:

Cars
Chicken Little
Eight Below
High School Musical Encore Edition
Meet the Robinsons
Ratatouille

I had no troubles with other Disney movies. Such as 101 Dalmations, 102 Dalmation, Finding Nemo, Monsters Inc., The Lion King (all 3), Lilo & Stitch (all 3), Toy Story (1 & 2), Brother Bear (1 & 2), Bambi (1 & 2), Aladdin (all 3), and quite a few more.

I use the same settings each time. My current version is 4.0.5.5. I use a 2 pass encode directly from the source disc. For arguements sake, I have tried ripping the main movie to the hard disc and encoding. This was unsuccessful as well. There must be something in common with the discs that I stated above that are causing the issue. Any help or ideas would be appreciated.