Yes! Oh my God, I thought that was a uniquely Australian thing because my partner from the UK had no idea what I was on about. But there was like 2 years in highschool for me where everyone was obsessed with the fitting 3-4 songs on a minidisc.

Though it helped that you could get actual, good music in cereal box mini discs prizes. I got a Missy Higgins Single and played it to death. (litteraly, it exploded in our PC disc drive, mini discs were great at doing that)