@ FordMan,
Suggest visiting The Dangerous Brothers Web Site for DVR-212D v1.15 Firmware ->
http://tdb.rpc1.org/#DVR212D
This is TDB DVR-212D RPC-1 v1.15 Firmware and using the Media Code Speed Edit tool and applying “Allow Same To Same Flashing” patch to the Official Pioneer DVR-212D Flasher you will be able to upgrade to Official Pioneer unmodified version 1.21/1.22/1.24 Firmwares if that is what you desire.
Regards,
bjkg