This is a must own for anyone that likes the surround format for music.a) this is a sensational album.Shine on is a brilliant soundscape. Welcome to the machine is a brilliant cynical observation. Have a cigar is one of the best songs about the music industry ever put together. Wish you were here is timeless.b) the mix is outstandingI think this mix even surpasses the brilliance of dark side of the moon.As i say, for fans of surround music, this is a must ownnow we await meddle, animals, the wall, final cut, and perhaps atom heart mother :)