 It was the first of a handful of releases featuring material Judas Priest had recorded during their time with Gull, and was produced by the label in an effort to capitalize on the band's growing popularity.As the band had forfeited their legal claim to the music, the album was released without their consent.All songs originally from "Rocka Rolla" (1974), except Diamonds & Rust, which was an outtake from the "Sad Wings of Destiny" sessions and was included to generate more interest on the compilation.