Help needed for a novice

right, i’ve managed to back up a dvd to my hd but whenever i try to burn this (or anything else for that matter), all i get is a window saying that there is already another application using the drive but it won’t tell me which application this is. can someone please tell me how to solve this problem. i’m using nero 6 and my writer is VOM-1248X(i think thats what it means) :o

Maybe you have Nero INCD installed?

Are you using Nero backitup? Which program are you using to create a backup of your HD?