I have 2 dvd drives on my computer. 1 is a dvd rom, the other is a cd/dvd rw combo drive. I'm having the following problem. These drives play a factory dvd fine, but when I burn one, the sound is distorted and the video appears to be slowed down. This happens with both drives. When I play the dvd I burned in a standalone dvd player, it works fine. This leads me to believe that the dvd was burned correctly (using Nero Burning Rom) and that the problem is a setting on the computer that needs changed. Can anyone help me fix this?

Thanks in advance,
Jimbo

are the lens dirty on the drives of the PC ?