I'm trying to find out if I can get iTunes music to play through a TOSLINK output. I've got my Mac Pro hooked up and local digital TV audio (from EyeTV) comes through just fine. I also get 5.1 surround when playing DVDs but I cannot get any other sound from the computer to play through my home theater receiver. I have "Digital Output" selected as my sound output device in "System Preferences" and I have tried many different combinations of "Format" (44100 - 96000 Hz) and channel combinations (2ch-16 bit, 20 bit, 24, bit + Encoded Digital Audio) in the "Audio MIDI Setup" utility. It would be nice to be able to get ALL my sound, including music, through the same digital/optical output. Am I I wasting my time trying to do something that is not supported?