Back in 1997, long before MP3 was anything more than a concept, I was serving in the Air Force and frequently deployed overseas. Some guys on the squadron introduced me to a strange format for making music portable. MiniDisc.
I soon got to learn that those tough little discs survived the rough-and-tumble of life in a kit-bag. We each bought portable players, and would ‘pool’ our discs together to make little music libraries, would trade discs with one another, and would copy CD’s for one another back home. No matter where we were in the world, AA batteries were easy to obtain, and just a