Patent ID: 6690642
Filing Date: 2004-02-10
Classification: G11B

Abstract:
An optical disk comprising:a disk body having a first surface adapted to be printed thereon, and a second surface opposite to said first surface and adapted to store optical data, said first surface being formed with a central cap-receiving recess that extends downwardly and that has an inner annular surface and a recess bottom, said second surface being formed with a shaft-receiving recess that extends upwardly and that is communicated with said cap-receiving recess, said cap-receiving recess having an area larger than that of said shaft-receiving recess; and a cap body received in said cap-receiving recess, said cap body having a top side adapted to be printed thereon, and a peripheral portion on said recess bottom, said cap body being movable from a normal position, where said top side of said cap body is flush with said first surface of said disk body, to a position of use, where said cap body protrudes relative to said first surface of said disk body.