Need help badly- Digital Research DDVD16DL

Hey, i just bought a Digital Research DVD burner. It supports both the + and - formats, but i cant get the - to work. I have gotten it to burn regular CD-Rs and DVD+Rs without any trouble what so ever. But, every time i try to use a DVD-R, i get the “Power Calibration Error”. All the DVD-R’s i’ve tried are Maxell, and i am really really hoping that this is the discs and not my drive. I’m using the bundled Nero suite by the way.

Thanks.

try firmware upgrade or other discs

if ur burner was EXTERNAL then its just a USB2.0 comunicated error try Micro20 burner program, therefore i had this problem too then after use this program it never truobling me again