Well, I found my identical drive worked under 9.0.4 with Toast 3.8! Now I'm onto OSX the damn drive will only burn data CDs (reboot into 9 required for audio), and even then only with Toast 5.1.1. Apple System Profiler tells me it's a Mass Storage recognised drive, so should work, but neither iTunes nor Disc Burner do the business...
Anyway, have you made any progress? Do you want a copy of Toast 3.8!?