The smaller disc size than a CD. The built in protection for the disc (I had a shitty car at the time and I think discs got scratched up by the player itself,

The smaller disc size than a CD. The built in protection for the disc (I had a shitty car at the time and I think discs got scratched up by the player itself, eventually they were all unplayable). Recording built in. It scratched all the itches of the early 1990s. The devices themselves were pretty sexy too, portable, full featured.