Cripes, how is it possible I haven't heard about this release until now?!  Even though it's supposed to come out in less than two weeks, there's not much info.  I'm hoping there's new material, but considering it only has five CDs, it may well be just a collection of the four albums that have already come out.  At least it appears to have a snazzy-looking box, although even that is not entirely clear.

M4G will post the official announcement soon:) I can reveal it includes 4 preview tracks from the Halo Wars soundtrack (composed by Stephen Rippy) and footage from the recording session.