A couple months ago I started backing up my DVDs. I've done 50 or so with no problems. I bought a used DVD of Monthy Python and the Holy Grail a long time ago that i'm trying to backup. There is a pretty deep scratch on the disc but it works in my stand alone player. I get errors when i try to rip with dvd decrypter with ignore read errors. It has retried well over 200 times and is reading at 0.0x. DVDshrink freezes at 13%. Isobuster freezes. Is there any hope here? I've tried everything,including with the skipdocter and different cleaning methods. Thanks.