I suspect that you'd need to be under an NDA to get access to the spec/details, but there was someone busy in the Karma areas trying to reverse-engineer it (with some sucess). Have you had a nose round down there?

I originally envisaged having a server process running as a daemon (inplemented as a state machine) on the empeg to catch protocol2 requests, then feed the player with protocol1. This would not be trivial: main problem was the difference in the dB format.

Needless to say, I got no-where and have not done it.