Thanks.. LAV decoding shows up for all MKV movies except ones that are VC1 encoded. Does the LAV splitter work on VC1? Also with VC1 encoded moves, the audio is NOT passing bitstream, instead it is passing multi-channel PCM audio. The correct bit streaming is working for all NON Vc1 encoded films. I got MPC to work, by changing the internal filters to OFF for Mpeg movies. LAV decoding, then worked fine.