Extended play

Extended play for EP for short (also known as expansion disk), is the name of a hard disk or CD that contains more music than a, but is too short to be considered as. Usually an EP disc is about 10-20 minutes long, while a single disc has less than 10 minutes and an album has about 30-80 minutes. Mini-LP discs are usually 20-30 minutes long. In United Kingdom, the Official Ranking Company (The Official Charts Company) defines the difference between an EP disc and an album as 25 minutes in length or the number of 4 tracks. EPs published in different sizes at different times. In the 1950s and 1960s, EPs are usually recording 45, 7 in, with 2 entries on each disk.