Classic 1977 Pink Floyd album in 5.1 Surround on a DTS-encoded CD. This will not play in a standard CD player - you need to have a DTS-CD (or DTS-DVD or blu-ray) player and a 5.1 set-up to be able to hear the surround mix. This fan-made set has the official 2018 5.1 surround mix which sounds amazing! Dogs alone has amazing placement of the instruments which will give you goosebumps! Perfect gift for the Pink Floyd/surround music fan in your life.