I have been burning quite a few back up dvds recently, and thought I would treat myself to a 3 pack of 8.5 gb dual layer discs. To my surprise, nero does not acknowledge this disc, and repeatedly asks for a disc to be inserted as it states that the drive is empty. As these discs were quite expensive, and yes, I do have a dual layer burner (16x), I am somewhat frustrated with the problems I am having now. The burning program that I have been using is nero 6, with no problems till now. Any advice would be great. Thanks.