Dude, it is THE BEST WRITER for DC games. It also supports BurnProof (Never buffer underrun again) and burns Audio at x12 with no errors.
Unfortunately, nothing supports GDROM originals. (Except GDROM readers/writers and DreamCasts of course, but the readers/writers are mega money!)
There was a claim from Kalisto that they had cracked the firmware on Yamaha 400t SCSI devices that allowed it to read GDROMS but I never got the firmware and the rumour stopped a couple of months back.
If anyone comes across this firmware, I'll try it for you all! I've got the necessary burner, and it don't record anymore, but it does read a treat. So I'm not fussed if I blow it up in the quest for DC gaming!