: a device or mechanism that can hold multiple disks (such as phonograph records, CDs, or hard disks) and that changes the disk being used automatically as needed
Sony's autochanger comes with proprietary robotics that retrieve the disks and insert them into one of two disk drives.Electronics, 25 Nov. 1985
One reason the XJR is so heavy is because it's loaded with luxury equipment, such as a killer 320-watt Alpine sound system with a six-disc autochanger. Dan Jedlicka, Chicago Sun-Times, 10 Dec. 2000