Hi, I've backed up several DVDs no problems at all. I have 3 others that I can't. I'm doing the exact same procedure as I did with the others. Open disc, select DVD drive contains the name of the DVD I want to back up. I click OK to then goes to the analysing screen, then I get, DVD Shrink encountered an error and cannot continue, failed to read file E:\ data error ( cyclic redundancy check ) Any help appreciated, Cheers, Peter.