well, im using the 6670 as a HTPC. i hook the 1.4 hdmi to a digital receiver, and then i can use radeon's dolby true HD and DTS-MA, plus LPCM 8 channel.
So you connected the HD6670 with HDMI v1.4 cable to your receiver, and were able to get those audio formats you listed.
> Did you also have a TV connected from the receiver with HDMI too?
> Were you playing a video file that had those formats, or just an audio file?
> In either case, what software was used to play the file?
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