NEC 2500a: Registering as a standard CD-ROM Drive

I am running Windows XP, and recently installed the NEC 2500a DVD burner. As it came with no driver CD or similar, I assumed such would not be needed. However, Windows is only recognizing it as a standard CD drive. It will not show blank media of either kind, either. Any thoughts on what I might do to fix this? I will happily provide any more information that would be helpful.

Are you running Service Pack 1?

Is your drive setup as Primary slave or Secondary Master/Slave? Secondary master is preferred.

Have you the latest bios for your board?

Does it show as a DVD-RW in the POST test and bios screen?

Can DVDIdentifier identify your DVD media?