Hello - I installed a new DVD burner yesterday (a NEC ND-3520A) into my system which runs XP pro.
The drive is recognised as a DVD burner in my computer and powers on. It will play DVD media that is pre recorded such as PC Advisor DVD, but when i tried to burn some files to a blank DVD (memorex DVD-R) the drive shows up as a CD drive only and wont open the DVD to drag files to, error message is: H is not accessible Incorrect function.
you shouldn't have a problem. I think I would suggest you change the jumpers. Make the NEC the master and the other optical the slave and give it a go. Or make the NEC the master and disconnect the other optical temporarily. As a DVD burner will also burn CDs you may find you don't need both.
One other (maybe silly) question. You are selecting DVD in Nero aren't you?