The Millennium Collection - 20th Century Masters is a CD featuring the iconic pop group ABBA, released in 2000 under the record label Por, Polydor / Umgd. Produced by Benny Andersson, Björn Ulvaeus, and Michael B. Tretow, this collection includes a compilation of the band's greatest hits from the 20th century. With a total of 1 disc, this release is a must-have for fans of ABBA and pop music from the millennium era.