Every dvd i have backed up has some sections of the movie that the video starts to break up and the sound cuts out. Ive burnt 4 so far. I have a 4x burner that comes with a dell (not sure the brand). I am using dvd shrink and nero to decrypt,shrink and burn. I have tried decryptor but when it decrypts and i try to use shrink to shorten it an error message pops up. I have used phillips and memorex dvd+r and rw. Do you have any idea why i am getting bad spots in the video and audio. Also when i shrink it i am keeping it above 70%. One was at 90% and still did the same thing.