I can remember Dolby on my cassette recorders.
http://news.yahoo.com/ray-dolby-audio-pioneer-dies-aged-80-230311877.html
http://www.sfgate.com/entertainment/article/Sound-system-pioneer-Ray-Dolby-dies-at-80-4809848.php
http://news.yahoo.com/ray-dolby-audio-pioneer-dies-aged-80-230311877.html
http://www.sfgate.com/entertainment/article/Sound-system-pioneer-Ray-Dolby-dies-at-80-4809848.php