As of March 2015, compact disc (CD) players may be becoming obsolete as the rise of MP3 players continues to increase. The first CD to be sold was "52nd Street" by Billy Joel, which went on sale in Japan in 1982. For more than 20 years, CDs, and CD players to play them on, were the most popular form of music sold, until that form was surpassed by digital music in 2011.
Customers have typically favored convenience when purchasing music, according to a report by National Public Radio. The long-playing (LP) record replaced the 78 rpm record due to better sound quality and its ability to hold more songs. This was then replaced by the eight-track cassette, smaller cassettes and then the CD. With the MP3, users can purchase music in digital form and store it on an MP3 player. This saves the user the hassle of keeping track of multiple CDs, records or cassettes.