Recording and reproducing device including a plurality of recording mediums

A recording and reproducing device comprising:

• a case;
• at least one recording medium having a disk-shape, a motor configured to rotate the at least one recording medium, a head configured to read or write information from or to the at least one recording medium, and an actuator configured to drive the head to scan in a radial direction of the at least one recording medium which are provided in the case;
• and
• a regulating portion configured to, when an external shock is applied to the at least one recording medium, contact an outer peripheral edge of the at least one recording medium to regulate displacements of the at least one recording medium due to bending of the at least one recording medium,
• wherein the regulating portion has a regulating member and a slide driving unit,
• wherein the regulating member is displaced between a position away from the outer peripheral edge of the at least one recording medium and a contact-possible position or a contacting position,
• wherein the slide driving unit slides the regulating member in the radial direction of the at least one recording medium between a position away from the outer peripheral edge of the at least one recording medium and a contact-possible position or a contacting position,
• wherein the regulating member is pivotally supported on a support shaft parallel to a rotation axis of the at least one recording medium, and rotates following the rotation of the at least one recording medium by coming into contact with the outer peripheral edge of the at least one recording medium.