I was trying to back up a DVD... I copied the files onto my hard drive and burned them onto a DL disk, and tried playing it, and the disk was all messed up. The sound and audio both skipped and stuttered. The menu visuals were stuck on the FBI warning, though the sound on the menu plays, albiet skipping and stuttering. The original copy plays just fine. Then I tried playing the copied files directly from the hard drive and the same problem was present. I tried copying the original disk again and playing the files from the hard drive, and the same problem was present. I did use a copy protection decoder to copy the files, but what exactly is the problem here? The original is not in the best of shape, but why should that make the copy play worse than the original. Any help would be great, thanks.