Deluxe three disc (two CDs + PAL/Region 2-6 DVD) Sound And Vision edition of this collection from the Swedish popsters includes two CDs (Number One Singles plus Classic Tracks From Number One Albums) and a companion DVD that features video clips, performances and more. ABBA remain the most popular Pop band ever from Sweden and certainly one of the most popular bands to ever grace the upper regions of the Billboard charts. Features hits like "Mamma Mia", "S.O.S.", "Winner Takes All" and, of course, "Dancing Queen". Universal.