Announced a while back the Buffalo LT-H90WN and LT-H90LAN just got a new firmware which adds the compatibility with the Sony BDZ-X90 and BDZ-L70 Blu-Ray players/recorders. Now Buffalo's LinkTheater series is able to stream MPEG4-AVC and DR contents over your network.

Unfortunately, it seems that you can stream video only from recorded Blu-ray discs and not from purchased discs.