I am not sure if this is a problem with DVD shrink, but..... I recently helped a friend upgrade to a dvd burner (LG GSA-4163B) and a dvd rom (LG GDR-8162B). Now the system he is running on is rather slow. Its a P3 800 with 384mb of the old pc133 ram running Windows XP Pro(no service pack). He has backed up a few of the dvd's he has. Some of them play flawlessly, then others will either skip, freeze or not play all the way through. When he tries to copy my backups, about half of them work. I have used the same dvd-r's many many times (X_Media 4X made by SKC) with dvd shrink and nero with no problems. I am thinking the motherboard might need a bios update or something, cuz we just re-installed XP and all his software. Any ideas??