I'm new to backing DVDs up and I'm trying to back up National Lampoons Pledge This for my sister. The only thing is that dvd43 won't decrypt the movie, all it does is lock my computer up. I tried DVD Shrink 3.2, but I'm not that familiar with it so I'm not sure if that is working either because my computer will still lock up. Is there different software I should try, or could it me the disc its self?