He is a co-founder of The Voyager Company in 1985, the first commercial multimedia CD-ROM publisher, and The Criterion Collection in 1984, a collection of definitive films on digital media with in-depth background information (including the first films with recorded audio commentary).
Born and raised in New York City, Stein attended Columbia University, majoring in psychology.
Stein then worked with Alan Kay at the Atari Research Group on various electronic publishing projects.
After Voyager, Stein founded Night Kitchen to develop authoring tools for experimental electronic publishing, primarily TK3[permanent dead link].
One is building high-end tools for making complex electronic documents (part of the Mellon Foundation's higher-ed digital infrastructure initiative).