YOu need DVD Shrink beta: It's Free. If you want to Copy Dual Layer commercial DVD's and you will need a program like the ones outlined below to burn the back-up youmade in DVD shrink.
Thanks ... My problem has now got worse... please see my next request for help posted, as windows has now sent me down a certian creek with out a certian form of propulsion..
But you need to Shrink the DVD's first. DVD Shrink...it is free and works great. Once you have coped the DVD to a location on your hd nero automatically will start the burn proces for you!!!!