Hi is comes out on "This title will be released on September 28, 2010"
see link
Amazon.com: Halo: Reach [Original Game Soundtrack]: Martin O'Donnell;Michael Salvatori: Music (http://www.amazon.com/Halo-Reach-Original-Game-Soundtrack/dp/B003Z9Q5T8/ref=sr_1_1?s=music&ie=UTF8&qid=1284634049&sr=1-1)
and I would like to request it:)

the mp3 version is out already. this is the cd version.

i would like to second the request though, and add for it to be in flac :)