I'm running Buffalo 8.57 + Riplock successfully...
Just make sure to first crossflash you 109 to A09 1.57 firmware.
Then use QuietDrive util... I've disabled my QuietDrive feature completely by choosing the standard bullet and obviously removed the riplock.
Flash with Buffalo firmware 8.57 by using DVR Update.
All works like a charm.
Copied 10 DVD's yesteday and ripped most of them on a 6 min average...