The compilation includes every extant in-studio session the band recorded for BBC Radio, as well as three live in-concert tracks.

[1][2][3][4] All of its contents, except for the three tracks recorded for the Friday Rock Show in 1981, have since been included on Castle Communications' 2004 reissues of Atomic Rooster's first four studio albums.

The mastering of all in-studio tracks on this disc renders them slower-sounding.

The same problem exists on the selections that were used on the 2004 Castle Communications reissues.

In addition, the original lineup of the band, with Nick Graham on bass guitar and vocals, recorded their first BBC session on Alexis Korner's World Service Rhythm & Blues show in December 1969.