I can't believe it, my DW-D22A could not burn DVD-R, DVD-RW, nor DVD+R DL but when I disconnected it from my Promise IDE controller and connected to the IDE controller on the motherboard, it now can burn ALL the formats that it is supposed to. That is sooo weird because it was burning CD-RW, DVD+R, and DVD+RW just fine. How can the IDE controller affect which media it can burn? Or is it because my IDE cables are short and I had to switch bays which caused me to switch power cables? Maybe I had too many devices on one power circuit. Do DVD-R/RW and DVD+R DL require more voltage than DVD+R/RW?
Anyways, Memorex DOUBLE LAYER DVD+R DL (RITEK D01) media works great now on my DW-D22A