In the autumn of 1973, while Roger Daltrey, Pete Townshend and Keith Moon were preparing for the Tommy film, Entwistle was put in charge of completing an album to counter the rampant bootlegging that arose from the Who's concerts.

[11] "If John Entwistle had never seen Who's Zoo",[12] observed that bootleg's cover artist William Stout, "we might not have had the legitimate Who release of Odds & Sods".

[11] He and the producer of his solo albums, John Alcock, compiled Odds & Sods from various unreleased Who tapes.

"Put the Money Down", "Too Much of Anything" and "Pure and Easy" were from the aborted Lifehouse project which the band worked on during 1971 and 1972.

"I'm the Face" (which is a reworking of the Slim Harpo classic "Got Love If You Want It") was The Who's first record, when they were still performing as the High Numbers.

The mix of "Under My Thumb" on the 1998 remastered CD is a special stereo remix produced but not used for the Thirty Years of Maximum R&B box set that omits the original fuzzbox guitar part.

The bonus tracks that were issued previously on the 1998 CD remix reissue were added after the original running order of the album.

These bonus tracks used the original analogue mixes where possible rather than the remixes prepared for the 1998 expanded CD reissue.