UFO are widely regarded as one of the UK's best hard rock acts and this year they are celebrating their 50th year in existence with their final world tour. This double album brings together the best of the material they recorded in what is considered their halcyon years for the Chrysalis label. The compilation has been created in conjunction with members Phil Mogg and Andy Parker who have provided new insights for the notes. This set has been newly remastered from the original analog production masters by Andy Pearce. Presented here in an 8-panel digipak with o-card with new sleeve notes by Malcolm Dome.