The crazy thing is these came out in 92' and they didn't stop production until 2013 so you can still find these players. I just found out Sony stopped production of the minidiscs just last year which is crazy. A 20 year run for the player and 30+ years for the minidiscs.
If you can find a player, you can still get the discs on Amazon which is awesome considering how disposable tech has become.
The minidisc was probably beautifully designed. I still have a player and some sample discs because I found them so beautiful. No wonder Ive and Jobs used to go “what would Sony do?” As a design round at early Apple 2.0