Such embossed discs were quite common in the late 19th century for various music boxes and orchestrions.
It seems like they then went out of fashion in favour of paper rolls, presumably due to the increased playing time that could fit on a roll. Then of course the gramophone record was invented, so back to discs... Enter audio cassette tapes: miniature rolls. CDs. Are we in fact stuck in an eternal cycle? Where are my optical tapes?!
It seems like they then went out of fashion in favour of paper rolls, presumably due to the increased playing time that could fit on a roll. Then of course the gramophone record was invented, so back to discs... Enter audio cassette tapes: miniature rolls. CDs. Are we in fact stuck in an eternal cycle? Where are my optical tapes?!