I didn't know where to put this, so I chose this forum as it relates to Apple TV...
My AppleTV sends audio via the optical port to my home theater, which displays the encoding of the audio being played (PCM, AC3, etc.). On movies I bought from iTMS in the past, the display always read "PCM." Last night I bought two James Bond movies from iTMS. When I play them, the display reads "AC3 3/2-1." Has there been a recent change in the way iTMS encodes the movie audio tracks?