Finally got our system up and running -- an Onkyo TX-SR605, Sony 50" SXRD rear projection set and Panasonic's Blu ray player....passing everything through HDMI and then sending it to the TV also via HDMI, I seem to be unimpressed with what is going on with these new audio formats which is why I bought into this new technology to begin with. Watching both Pirates of the Caribbean (in "uncompressed" PCM 5.1) and Fantastic 4 (both of which came in the Panasonic's box), the audio tracks are unremarkable to say the least....I understand this Panasonic Blu ray player cannot send the DTS Master Audio bitstreams yet to a receiver to be decoded, but the DTS track that defaulted to my Onkyo from the Fantastic 4 disc sounded much "lower" in output than standard DVD -- very dissapointing, as did the "uncompressed" PCM track from Pirates. All my receiver settings are right and have been calibrated correctly, so that is not the problem. I thought "PCM" tracks uncompressed would deliver a loud, raunchy much more punchy audio experience than DVD's compressed Dolby Digital mixes ever would....but this does not seem to be the case. I think DVD tracks actually sound louder and richer.....is this normal? What is going on with the audio tracks being sent from the Blu ray player to the receiver?