I have ran into some trouble trying to back up my dvd movies. I am currently using dvd decrypter and dvd shrink with a sony dru-710a burner. I originally started out using Memorex 8x +r dvds and had no luck at all, I switched to Fujifilm 8x -r dvds and had burned 8 straight copies with no problems. Now the last 5 attempts have all failed with an I/O error, Cannot Write Medium-Incompatible Format. I have not changed software or the sequence that was working for me. I have tried doing the entire dvd and the movie only and neither will work. Any suggestions would be greatly appreciated. Thanks too all!