Okay, so I am using DVD Shrink to backup Wedding Crashers and I included the 2 channel main audio and one commentary audio and DVD Shrink says 4,463MB will be the space required, however, the output file ends up being 4,571MB, too large to burn on a DVD, how come it does that? Is there anyway to get around it so I can have the main audio and a commentary audio?
I'm not sure I totally understand your question; but my own interpretation of it was that when you're using compression settings before encoding/burning, the prog says that the final size will be 4,463 megs. When really, just before burning, it will tell you that the file size is too big to fit on a dvd+/-r.
Now, if that's the question you are asking, then I can tell you it's happened to me and pissed me off many times (lol), but I've found that sometimes you have to compress the dvd a little more than desired so the prog. will not pull that kind of crap. (I was thinking maybe it's some kind of a bug that was never fixed???)
Anyway, if that's not the case, I've also heard that Wedding Crashers (depending on what region it is) is ARccOs protected--I bring that up because I've seen ARccOS protected videos that won't let you compress them, or in your situation, say the file size is too big. Well, if you have AnyDVD, use it. If not go to slysoft and get a trial version and try to copy it again in Shrink with that running. Otherwise, if not AnyDVD, download DVDFab Decrypter and rip to HD, then compress and burn with Shrink. Hope I'm hearing you out correctly, good luck and happy burning!