Hi, I'm sure, my question may seem stupid, but I'm absolutely newbie with optical in/out. OK. I have Terratec Aureon 7.1 Space and (since today :-) a receiver Yamaha RX-V540. Before experimenting with ALSA configuration, I'd want to be sure which optical input I must to use. The receiver has three optical inputs: "D-TV/CBL", "DVD" and "MD/CD-R". Which of them to use? Or, may be, they are all equivalent? Thanks in advance, Andrew