I use DVD Decryptor and DVD Skrink to make backups of my moives. I have an 8 speed Plextor drive with latest firmware, a 1.4ghz processor, 512mb ram. I use Memorex 8 speed media to do my backups. Everything goes fine with no errors when I do my backups. The issue is when I play the movies every one of them skips a few times about 20 to 40 minutes into it the movie. Anyone have an idea or is it just my media?