Are cassette tapes making an unexpected comeback?
22 February 2016 Last updated at 15:02 GMT
Cassette tapes could be making a comeback despite being killed off by CDs in the 1990s.
Sales are up as some artists now choose to release new material on tape. The Recording Industry Association of America is now looking for ways to track sales again.
Listen to Esther Ford - who runs Manchester's Deco Records, which sells cassettes alongside CDs - tell BBC Radio 5 live that many people now ask for cassettes: