Currently Being ModeratedOct 19, 2012 8:34 AM (in response to Fritzables)
Alot of devices do not support DD on optical audio connections. You have to turn it on for ATV. Also very little content acutally comes with DD encoding especially in streamed content.
Go to Settings>Audio and video and find the Dolby Digital entry.
Currently Being ModeratedOct 19, 2012 10:06 AM (in response to Brian Cook4)
I use HDMI and, when streaming movies from my Mac Mini, the receiver (Marantz) only shows Stereo.
When I stream TV shows from the iCloud, it shows Dolby Digital.
Audio is set on Auto for HDMI and the movies are in DD 5.1. And yet, I only get Stereo through my AppleTV.