So let me see if I understand what you're saying -- for things that are already encoded in DD or DTS, SPDIF passthrough works properly, since it's just forwarding the signal, but for something that supports multispeaker but isn't actually DD, your soundcard would have to be able to convert it from its proprietary stream into a DD stream and send it over SPDIF? Wow .. That is /really/ misleading on Creative's part if that's true ...