This CD box set features the greatest hits from the '70s, including soul and R&B tracks. The collection features various artists and was released in 1990 under the title "Super Hits of the '70s: Have a Nice Day, Vols. 1-4". The set includes 4 CDs and is in mint condition. The format of the CDs is standard audio compact discs and they were released by Rhino (Label). This compilation is a must-have for fans of soul and R&B, and is a great addition to any music collection.