I've had good experiences with flashing optical burners for better media support.
Ok, I fixed my problem. 🙂
Here's what I did to screw up then fix it:
- Flashed Mitsumi drive with NEC firmware and a Windows-based flashing tool
- Flashing tool hung during flash, all attempts to recover the system without restarting failed
- Retried using NECFlash and the Dangerous Brother's flasher tool, didn't see the drive
- Last ditched attempt, downloaded firmware from NEC and used their loader
Normally official NEC firmware won't load for obvious reasons, but I think because my Mitsumi's firmware now had NEC string in it, it thought it really was an NEC.