Burning dvd+r dl

I have an atapi DW1650 8x16x8x16 which i have been trying to use to burn TDK dvd+r dl. I tried using nero and it would not recognize 8.5 gb i also used write cds and sonic record now. the only one that burned anything was write cds but then it did not show anything on dvd and didn’t even recognize dvd. I have also tried to upgrade firmware for dvd but it won’t let me. says dvd burner can not be upgraded. I would appreciate any help with this. Thank you in advance