A disk sorter for DVDs, CDs or other disks includes a sorter frame. Plural sorting trays are contained in the sorter frame in a multi-level arrangement, respectively have a front tray end and a rear tray end, are inclined downwards toward the front tray end, for containing a disk on a side higher than the front tray end upon reception with the rear tray end. A movable chute structure is disposed behind the rear tray end, movable up or down, inclined downwards toward the rear tray end, for supplying one of the sorting trays with the disk by guiding to the rear tray end. A disk transfer device holds the disk, and places the disk on the chute structure, to transfer to the one sorting tray. Furthermore, a lifting device moves up or down the chute structure, and positions the chute end at the rear tray end.