I have been making backups of my dvds with ripitforme and burning using nero and my NEC DVD_RW ND_2510A USB external drive for months now. All of a sudden every DVD I try to write comes out jerking all over the place when I try to play the disk.I am using Taiyo Yuden DVD+R8X disks.I tried to backup "The Marine" and "Gridiron Gang". The Marine only jerked in a few places but Gridiron Gang jerked all the way through. I downloaded a new copy of Fixvts and dvdshrink and burned again to no avail. I also burned with internet connection disconnected and all virus and antispyware turned off. Still no luck. My computer has an AMD Sempron Processor 3000. Anybody have any idea why I am suddenly getting bad burns? I used Nero to burn the dvds. When I play the .vob files I have on my HDD with VLC Player they play fine. When I play "Gridiron Gang" with the GOM player the .vobs play but with no sound. "The Marine" played in the GOM player jerked . I tried to burn using Imation DVD-RW discs. The result was the same. '