There are numerous bootleg packages that contain the same material included here, a blast-through-it-once set of originals and stage staples recorded at Herouville Castle in Europe in 1972. The big ticket here is the inclusion of "Thunder Express," an original the band never officially recorded. To round things out, the disc also features "I Can Only Give You Everything" and "I Just Don't Know," both sides of the group's first single. Both "Thunder Express" and "I Can Only Give You Everything" officially appear on the single-disc Rhino best-of.