The Dictabelt also became available in 1947, according to Wikipedia: https://en.wikipedia.org/wiki/Dictabelt https://en.wikipedia.org/wiki/Dictabelt An interes

The Dictabelt also became available in 1947, according to Wikipedia: https://en.wikipedia.org/wiki/Dictabelt https://en.wikipedia.org/wiki/Dictabelt An interesting article about archiving of Dictabelt and other audio format recordings: http://thequietus.com/articles/18004-sound-library-british-library http://thequietus.com/articles/18004-sound-library-british-l...