4 ms·

I would guess that it's because you don't need any kind of computer in the play back device. It can be mechanical and therefore very simple.

• jbergens 9y ago
  Simple as in easy to understand, yes. But probably more expensive. An mp3 player doesn't cost much.
  • Kluny 9y ago
    For a tape player? I feel like my old sony radio/tape deck was like $15.