Lou Ottens, who invented the compact cassette tape and had a hand in the development of the CD while working for Netherlands-based electronics company Philips, has died at the age of 94.
The website DutchNews.com said he died March 6 at his home near Eindhoven, Netherlands.
Ottens joined Philips in 1952 and was picked to head its new products development division in 1960. Within a year the group had invented the compact cassette as a plastic-encased, portable version of a cumbersome reel-to-reel recording system.
"I expected it would be a success, but not a revolution," Ottens said in Cassette: A Documentary Mixtape, a film involving him, his invention and its fans. The movie was released in 2016 and is currently streaming on multiple platforms.