So I have both the Xtreamer prodigy black and the WD TV live latest model. I have them both connected to my Denon AVR-3310CI. When I select bitstream through HDMI on the prodigy it will display as DTS-HD Master for my 1080p blurays with DTS-HD Master audio and the HD Audio light will come on. When i select digital passthrough via HDMI only on the WDTV playing the exact same files it will only show as DTS SUROUND and the HD Audio light does not display.
So I think there should be a full bitstream option available or at least a way for the DTS-HD Master audio to be used