When Romero next turned Camelot into a motorcycle Renaissance Faire for Knightriders, Donald Rubinstein would compose an equally innovative score, as well as appear in the film as the leader of a musical trio.

[1] Rubinstein became close friends with Ed Harris on Knightriders, and would later write an unused score for the actor's directorial debut on Pollock.

[2] Donald Rubinstein's other soundtrack work includes the main title for the television series Tales From the Darkside (as well as its film adaptation).

Rubinstein's score for Martin was released for a fourth time in May 2015 by Ship To Shore Phonograph Company.

Jazziz Magazine included the duet "Fingers" by Rubinstein and Bill Frisell on their "Celebration of the Modern Era" special edition 20th anniversary CD in 2003.

In 2009 he completed a CD of original songs, "When She Kisses the Ship On His Arm," for Bare Bones Records, which included a vocal-duet with "country outlaw" Terry Allen.

His single song CD, "Ruby Star," sung in duet with Robin Holcomb, was first sold exclusively at The Museum of Modern Art in 2003.

During 2007 The Center for Contemporary Art, Santa Fe, presented a 'thus far' large-scale celebration of Donald's work, including a screening of films he scored, two art exhibits, and a concert performance with special guests John Densmore, Hani Naser and Terry Allen.

It also included Rubinstein's directing premiere, "Tales From the Edge," a short animated film based on his drawings.