I have an NEC AD 7173 DVD RW DL. It reads CDs and DVDs without any problem, but when I put a DVD DL in the drive , it doesn't recognize it. Clicking the DVD drive icon in my computer brings up a message saying "insert a disc in the drive". Why is this happenning? Do I have to activate anything anywhere for the drive to recognize the disc? I am using Aone DVD+R DL discs. Any suggestions?
I wouldn't go to the expense of trying different discs. First update the firmware click here then if that doesn't work you may have a faulty drive. I tried 3 different makes of disc before I found it was faulty although it burnt normal CDs and DVDs no problem.