Recording and reproducing device

摘要

The present invention has an object to provide a recording and reproducing device which can be used both for a cartridge disk (6) and for a cartridge-less disk (3) and reduced in size and weight, and which is capable of aligning a cartridge-less disk (3). A disk holder (14) adapted to set a cartridge disk (6) therein is provided on one and the other sides thereof with positioning means adapted to abut against a cartridge-less disk (3) set in the disk holder (14) to prevent it from moving to the innermost region R of the disk holder (14) and align it in a position corresponding to a rotational driving device (9), said positioning means being in the form of a CD stopper (20) and a step (30) formed in a shutter opener lever (19), thereby supporting and aligning the disk (3).