- Star Wars Galactic Phrase Book & Travel Guide: A Language Guide to the Galaxy (book). Illustrations by Sergio Aragonés. New York: Del Rey, 2001. ISBN 0345440749.
- (2012) How A Rocket Ride Really Sounds -- Thanks To Star Wars Tech - Sound Design & Mixing
- Provided the "voice" of R2-D2 and the heavy breathing of Darth Vader from the original Star Wars (1977), onwards. In Star Wars: Episode III - Revenge of the Sith (2005) he performed the voices of every single droid, including the Battle Droids, Super Battle Droids and Buzz Droids.
- (1982) Dolby: Listen - Sound Effects