With a post on his blog , Major Nelson has announced the opening of selections for a new Beta, unfortunately restricted only to U.S. residents, the next update of the Xbox 360 Dashboard. This territorial restriction has been made necessary because of the real object of testing: a new disc format. In fact, all participants will receive a copy of Halo: Reach into this new format, which you do not know anything yet. Stay tuned for more news on this.