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A612/MMC-3 Firmware? That doesnâ€™t look like any type of Firmware I have seen for Pioneer DVD Burners.
The most recent up to date Pioneer DVR-106D Firmware is version 1.08 dated 9 June 2004 ->
The Pioneer DVR-106D DVD Burner only supports writing of DVD-R (4x speed) and DVD-RW (2.4x speed) Media.
Now days it is going to be very difficult to find supported DVD-R 4x speed Media for your Pioneer DVR-106D DVD Burner.
It is probably wise to consider purchasing a new modern up to date DVD Burner to replace your almost 5-year-old Pioneer DVR-106D Burner that will be able to write to the new modern 16x speed DVD-R/DVD+R Media. Now days new modern DVD Burners can be purchased for approximately 30 USofA bucks.