Dolby digital 5.1 from mini port while in windows?

Hello all,
I'm running the most current of all software, and I'm trying to get 5.1 dolby digital from the mini port to HDMI? All I can get is 2 channel. Is it possible to get this to work? I'm using KM player and I'm certain this player supports 5.1 output. Any advice would be helpful. Do I just need to buy a toslink (optical cable) or is there a way to make this work?
Nate

As far as optical out goes, stereo sound from MP3s/WAVs/AACs etc, and stereo soundtracks seem to get converted by the Apple TV to a linear PCM type bitstream. Since Take 2.0 AppleTV can also output dolby digital 5.1 bitstream but does not need to do any onboard decoding.
Most amps/receivers that can accept an optical audio feed from a DVD player should do fine (certainly for the 5.1 DD). I would imagine if you are connecting via HDMI to the amp/receiver then you would have no trouble with any modern amps that support HDMI.
AC
AC

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Attachments:
Compare.DAC ‏28 KB

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Dolby digital 5.1 from mini port while in windows?

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