An audiophile's collection typically consists of RECORDS, CDs, and LPs. RECORDS are vinyl discs that have grooves cut into them, which are played on a turntable. CDs are compact discs that contain digital audio data, and are played on CD players. LPs are long-playing RECORDS, which are also vinyl discs, but they are larger than regular RECORDS and have wider grooves. All three formats are popular among audiophiles, who often collect them for their superior sound quality.