Dolby Digital Live

Demonstration of playback of a 5.1 uncompressed WAV file over SPDIF with Dolby Digital Live encoding:
Playback via X-Fi Elite Pro with Dolby Digital Live installed and enabled.
MediaSource 5.26.02 Player:

Optical SPDIF Out of X-Fi Elite Pro to Optical SPDIF In of Audigy 2ZS PCMCIA Notebook Soundcard with 5.1 speaker settings: