In this video I'm looking at another forgotten format. This one is the RCA Victor Tape Cartridge, also known as the Sound Tape Cartridge and the Snap Load Cartridge.
I'll try to find out what RCA got right and wrong, attempt to repair a machine and finally demonstrate this 1950's cartridge system that introduced a number of new ideas which went on to become standards.
After you've watched the main video, you may want to listen to the Bel Canto demo tape in full - so that can be heard here.
You can also watch the 1958 RCA Cartridge introduction film which also contains an introduction to stereo which explains how a record can hold two tracks read by one stylus.