Hi. I just purchased Norton Ghost 15.0 and I need to do a backup of my system to an external DVD burner. I boot up with the Recovery Disk and when I select the external CD it claims it can't write to a CD. The external Samsung drive is a Dual Layer DVD burner... it is NOT a CD. I even tried to select the internal DVD burner, and the same thing. Claims it is a CD. I think older version of Ghost could recognize external DVD burners. What gives? How do I correct this? Please help...