Hi! Sorry, for the english text, but my german is too poor, anyway i can understand a little bit. But anyway, I seek a solution for, the CS8406 user bit management. So I want to Send some user information throught optical connection, using the U-bit of the digital audio. So have someone some information, experiance with this. I need to receive the sent with a CS8416 chip. Someone examples, etc? Or some usefull links, I read the user guides of the chips but, they are giving me to few example.... how to make it. I set the register bits which are important but, my sent data didnt received... Thx, in forward... Peter