Bitsetting STILL does NOT work for 812s. I just upgraded to us0a and tried to change the booktype of a dvd+rw. I started booktype 1.0.4, changed booktype to DVD-Rom, completely erased my DVD+RW and then burned it - booktype is still DVD+RW (checked in the 812s and my Toshiba DVD-Rom). Exactly the same procedure worked on my 811s, so I guess that the firmware is still faulty.
In addition, I tested a brand new DVD+RW. Changed the booktype to DVD-Rom, burned with Nero 6303, checked on 2 drives: Booktype still DVD+RW. I did not close the booktype utility while burning. When I click on "query" after the burn, it says DVD-Rom. When I eject and re-insert the DVD-Rom and check with DVD Info Pro it still says DVD+RW.