I just bought a Pioneer DVR-112DSV Drive. It's in an Nspire external enclosure and I'm using a Mac Powerbook G4 OS 10.2. Both the DVD-ROM and CD-ROM functions work, but I can't get the blank CD-Rs or DVD-Rs to show up as drives on my computer, nor figure out a way to burn them. Am I missing a piece of software or driver? I can't find manuals or drivers for mac.