Ok, the seller emailed me back with this exact MID info, your opinions?
It’s RicohJPN (not to be confused with Ritek)… a good one.
Media Information
Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID RICOHJPNÄD0
Media Product Revision Number 43h
Format Capacity Blank Disc
Free Blocks 4253024256
Free Capacity 7.96GB(8.55GB)
Book Type DVD+R DL
Media Type DVD+R DL
Manufacturer Rated Speed Unknown
Available Write Descriptor CLV 2.4x 3324KBps
Data area starting sector 30000h
Layer 0 end sector 22D7FFh
Linear Density 0.293um/bit
Track Density 0.74um/track
Number of Layers 2
Layer Track Path direction (OTP) Opposite track path
Complete Media Code
00000000 08 02 00 00 E1 0F 32 10 00 03 00 00 00 FC FF FF …2…
00000010 00 22 D7 FF 00 00 03 52 49 43 4F 48 4A 50 4E 44 ."…RICOHJPND
00000020 30 31 43 40 25 25 37 10 00 2C 6C 00 2C 6C 20 1F 01C@%%7…,l.,l .
00000030 0C 0C 14 14 02 01 01 20 00 20 1F 0C 0C 14 14 02 … . …
According to the changelog of firmware updates, firmware 1.22 for the DVR-212 supposedly supports this up to 8X.