This is the same album as the Warner Brothers release "We Sold Our Soul for Rock 'n' Roll" from a budget company Nems. It covers Black Sabbath's hits from 1970-1976. It serves as a good introduction to those who are new to Black Sabbath and a good road trip tape for those who are already fans. This tape has probably 80 or so minutes of Sabbath's earliest hits and fan favorites making it a good starting point for those who are new to the band.