hen I went through the A/V Wizard, I select SPDIF Coax and Y for both Dolby Digital and DTS. The fix was to then go into the admin site, change the sound card to "Audigy", Uncheck the "Use AC3/DTS pass-through" and reboot the media director. Everything sounds good now and since figuring out how to get scrolling to work with my Wiimote and sensor bar, I can retire my aging Xbox based Xbox Media Center! Thanks!
Don't bother reading anything past this...
Yes, I have searched, read and tried several things to resolve this.
I have a netbooting md, with an Audigy card, connected to a Dolby Digital and DTS capable Sony receiver via S/PDIF Coaxial. When I run the AVWizard, I get sound for DD, but not for DTS. I've read that DTS is not possible on Linux with Audigy. When I try to play a movie, there's a crackle, and then no sound. I've started KDE, heard the start up music, unmute Optical Raw in alsamixer, no joy. I tried unmuting the other Optical setting, again with no sound in movies. What are the steps to set up an audigy 1 (not platinum) card for full LinuxMCE functionality?