PURPOSE: To load plural disks by small-sized and simple constitutive rotary body and to selectively move an optional disk to a position of a disk driving part.

CONSTITUTION: The device is equipped with a disk guide 4 in arm annular shape and a disk changeover rotary body 5 provided to be concentric with this guide and freely rotatable. Mounting surfaces 4a and 5a are formed on both the disk guide 4 and the disk changeover rotary body 5, where plural disks 6 are mounted to be arranged across these two parts in the circumferential direction. Then, the disk 6 is selectively moved to the position of the disk driving part (a turntable 7 and a disk pressor 9, etc.) by rotating the disk changeover rotary body 5.