Twice this week I've gotten errors while working with DVD Shrink. First time was while copying The Sixth Sense, second time was The 13th Warrior. Each time, the program begins its initial analysis of the disk - but at about 59% done on Sixth Sense, and at 80% on 13th Warrior, the program stops and gives me an error message stating the program can't continue. It then states "Cyclical Redundancy Check". Any ideas what is causing this error and how to correct/bypass it?