Big problem with NEC 1300A

I accidentally falshed my NEC 1300A
with the incorrect Firmware,
It is now an IOMEGA DVD firmware 1.22 instead of a NEC 1300A

Is there any way I can change it back ???
Also I tried to burn a DVD data disk from my HDD and received and error message in Nero
"disc at once failed, illegal disk:

Please help

just flash it with 1300A firmware in dos. if u don’t have a dos flasher (although i’m guessing u do since u were able to incorrectly flash the drive in the first place), go here.