Not to hijack the thread but before cassettes became popular there were 8-track tapes that were designed for car players primarily in the US. The design is amaz

Not to hijack the thread but before cassettes became popular there were 8-track tapes that were designed for car players primarily in the US. The design is amazing a continuous play tape that doesn't have to be rewound. https://en.wikipedia.org/wiki/8-track_cartridge https://en.wikipedia.org/wiki/8-track_cartridge They were less popular than cassettes mainly because you couldn't record them easily yourself.