I have this problem with "cyclic redundancy". 'recurring nonsense', I guess... Anyway, I think it may have to do with my 'DVD43' running in the background, or maybe my screensaver switching on, or both. About half of the DVD's I try to 'back up' give me this error. It works just fine when I sit and watch it, but if I leave it for a few minutes, Kabam!!! Error!!!! It takes about the same time that my screensaver should take to switch on,(Hence the screensaver prejudice). When I try to do the analysis again, 'DVD shrink' just starts where it left off (10%~50%~80%, wherever it got the original error) and gives me the same error. I've removed DVD43 from the equation, and turned my screensaver off. This seems to work on any new DVD's I back up, but any DVD that has had this problem in the past just gives me the same error, even on DVD Decrypter. My question is, Is there a way to erase the original memory cashe, (on dvdshrink), from the previous attempts at backup? I think that if I could start over from scratch, It would work just fine. Any help would be greatly appreciated.