I tried ripping Return of the King to my hard drive and editing it with Womble MVW. I have been having problems with A/V synch using Womble MVW, and Womble support said that the VOB file I was using had PTS errors. So I tried running a test where I ripped just a few chapters out of the movie using DVD Decrypter and SmartRipper. I discovered that the resulting VOB files were different sizes even though I was using all the same options (I think) in each program.

Does anyone know why DVD Decrypter and SmartRipper would not give the same VOB file sizes?