Nero or any other program wont detecect a blank DVD-R so i can burn a dvd off the computer onto it, its a NEC DVD+RW ND-1100A cd rom drive it didnt come with the computer tho and i dont have a installation disk but the computer already detected it and installed it its plays cd's and dvd's, detects blank cd-r cds but not DVD-R does anyone know what the problem might be it would be much appreshiated thx