VOB files and VirtualDubMod question

I'm trying to convert VOB files into AVIs through VirtualDubMod. I did some Googling and I thought the disk could have been scratched, but the clips play fine and the DVD plays too. I've ripped, reripped, and reripped again. Opening the VOB files causes Sony Vegas to crash. I ripped them using DVDDecrypter.

This is the message I get when putting the files into VirtualDubMod:

Cannot read from file "VTS_01_01.VOB": Data error (cyclic redundancy check).

Anyone know what I can do or what stupid thing I did to mess it up?