what is a good program to backup a dvd disc. i'm trying to rip the first disc of season 1 of smallville. it has 4 episodes on the disc. i had no problem backing up a normal movie like the rundown. but every time i try to backup a disc with episodes the burn alway stops. i tkink it stops after the first vob file. i have tried to copy smallville with dvd x copy xpress, dvd x copy platinum, dvd shrink, and a few others. the burnin always stops around 21% which is about the first vob file.