About halfway through backup up my DVD collection, I've recently encountered the error message described in the subject heading of this post. It has happened to 3 movies so far; "All the kings men", "Schindler's list" and "Six feet under" disc 3 from season one. All of whom work fine when watched. I have backed up movies successfully prior and since this error message so I'm not sure what is going on here. I'm using DVD decryptor and DVD Shrink with the occasionnal RipIt4Me, Any ideas on what I should/could do? Thanks in advance.