To use PAP, you have to actively code for it. Again, LPCM can be sent without engaging PAP. I think you're under the mistaken belief that it's just "active" and watching what comes through. That'd be an incorrect assumption I think. It's simply a "requirement" that in order to be allowed to bitstream, *LICENSED* players are forced to use PAP. On a technical level, I don't think it's required to send data down the HDMI path. But again, if you couldn't send any data without PAP, NOTHING would play right now except for the non-released PDVD9. But we are able to use LPCM for many different things. Games, TMT3, etc. So, if he encodes a raw TrueHD or DTS-HD MA track inside PCM and sends that through, it should work assuming the receiver then recognizes it. Remember that PAP is only on the PC side of things. The receiver knows nothing about it at all nor does it care. Stand alone players bitstream without it just fine.