Just bought a new computer with Vista. After a couple weeks of trying to backup my dvds i finally figured out that my old nero 6 was no good and upgraded to nero 8. Using dvd shrink and nero 8 i would go through the process of backing up my disk just as i have over the past 3-4 years. Only now for some reason my backups with only play in computers. Every stand alone dvd player I try I get a message that says "disk error: Play back feature may not be available on this disk". Was just wondering if anybody knew how i could fix this?? Any help would be greatly appreciated.