hi there, I am not very computer literate but I really need help. I am trying to burn a dvd using Nero. I believe it is Nero 7 Ultra Edition. I have a Gateway Notebook and the burner is: HL-DT-ST DVD-RW GWA-4082N. I have tried using both DVD-R and DVD+R and everytime Nero gives me an error message that says I inserted a CD-R. What am i doing wrong? Please Help!