I feel I am all at sea trying to decipher what all of these things are, my understanding is as follows, and please correct me if I am incorrect as I am sure others are in the same boat. DVI - Digital Video, no encryption, no audio DVI + HDCP - Digital Video + encryption, no audio HDMI 1.0 - Digital Video + encryption, audio multichannel (compressed I believe) + encryption HDMI 2.0 - Digital Video + encryption, audio multichannel (no compression) + encryption I am not sure whether these are correct, but the current crop of HDMI products ie the Pioneers etc are HDMI 1.0, and there are no HDMI 2.0 products out there yet. HDMI 1.0 is backwards compatible with DVI and DVI + HDCP. Can anyone confirm/deny these thoughts and please use english!!!