Do you still have BetaMax in Australia?
MiniDisc never really caught on in North America.
Actually nor in Australia, but the Theatre Industry in the UK loved them. When I came home I brought a mini disc player and a number of blank discs. I am now reduced to buying blanks on e-bay or equivalent but I still use them when I'm not using a laptop. I prefer minidisc to burning CD's for sound effects or background music because MD is so easy to edit but I still mostly use my laptop with a cue playing system on it.