Over the 100 years since Benny Goodman's birth, interest in his life and music remains as intense as ever—yet there has been no new discographical information since 1996. Benny Goodman: A Supplemental Discography fills that gap, gathering materials uncovered since the last bio-discography of Goodman in 1996. The annotated discography, presented chronologically, updates some previously known information and adds nearly 100 new discoveries, including over 65 previously unknown radio broadcasts, airchecks, and films.

Jessup presents new details about live appearances ranging from the mid-1980s back to the 1938 Carnegie Hall Concert, including an analysis of the controversial 1999 Sony reissue of that concert. Jessup also offers an essay detailing some of the difficulties of finding recordings in a digitally progressive age, as "new technology" can assist with—or hinder—collecting and evaluating this vintage music. An additional exploratory discography of smaller, collector-oriented labels describes nearly 400 reissues and collectible LPs, tapes, and CDs personally audited by Jessup and his associates. All 182 shows of the famous "Camel Caravan" radio series (1936-1939) are offered in print for the first time in an authoritative list. The volume concludes with a necrology of those associated personally or professionally with Benny Goodman who have passed away since 1996, and indexes by song title and musician make the material more accessible.