What really killed this format is the draconian copy protection that crippled the software for getting the tracks on device (for NET MD players). Other method(s) of getting sound on MD was essentially dubbing, like you would with MC. Other players removed the artificial barriers of getting your music on device, and it turned out that antipiracy measures are not a feature... which is a shame, because the feel and sound of MD players is pretty damn great, and the wired remote with minimal backlit display is god tier UX compared to anything that was/is on the market. I bought my first secondhand MD player in 2015, and it was the best thing. It even had AA battery adapter(!!!)