If you need booktype setting, for the time being you can flash your drive to the 851S firmware. You will lose 8X -R but you'll still have 8X +R and bitsetting will work. The procedure is the same as in the 451@851 thread. You can speedhack it too, if you like.
I just burned several RICOHJPNR01 @ 8X with DVD-ROM booktype on my 812S using the 851S firmware. They play fine in my XBOX with the Samsung DVD drive.