I am trying to back up some Disney/Pixar DVD's to my PC. A couple of them had some scratches and some minor play back pixelation and gave me a cyclic redundancy check error using DVD Shrink and a general fail error with DVD Decrypter. More recently I tried another disc which is clean, free of scratches and plays back fine and got the same error, although DVD Decrypter just hung for 5 minutes before crashing out. I have tried it with both my regular DVD-RW drive and my BR drive to no avail. Any thoughts on if it is the disc, software or something else? Thank you!