Following the Everything Sucks tours Aukerman returned to his biochemistry career, and All released two more albums on Epitaph: Mass Nerder (1998) and Problematic (2000). In preparation for inclusion on Live Plus One, the Descendents' 1996 Whisky a Go Go recordings were mixed by Stevenson, Egerton, and Jason Livermore at All's recording studio The Blasting Room in Fort Collins, Colorado from March 20–29, 2001. All then recorded two performances at the Starlight in Fort Collins on March 30 and 31 for the album, engineered by Livermore and Jan Saylor, and these were mixed by Stevenson, Egerton, and Livermore at The Blasting Room from April 1–10. Both discs of the album were mastered by Livermore, while he, Stevenson, and Egerton served as producers. The cover illustration of All was done by Chris Shary; an additional illustration of the Descendents—identical to the cover but with Aukerman in place of Price—was used for the inner liner.
Live Plus One was released through Epitaph August 21, 2001. It was the final release for both All and the Descendents on Epitaph; the Descendents moved to Fat Wreck Chords for 2004's Cool to Be You, while All has not issued any new recordings since 2001.
Live Plus One became the first All release and second Descendents release to chart, reaching #45 on Billboard's Top Independent Albums chart. Jeremy Salmon of Allmusic gave the album four stars out of five, calling the Descendents disc the more vital of the two:
All, being the later form, has songs which show a better overall sense of pop craftedness. The problem is that All's songs lack the primitive drive, (post-?) adolescent emotion, and angst of a Descendents track. The recordings of the Descendents, made in 1996 during the Everything Sucks tour, show a band which can still summon up the energy first exhibited on record in 1983. Not a bad feat for a band 13 years after the fact and with two different members [...] All is All, and that should suit their fans, but the Descendents steal the limelight here as the more vital band, and deserves to be heard by a wider audience.