Patent attributes
An optical disk apparatus, enabling to reduce noises, the wind sounds generated due to rotation of a disk, with certainty, irrespective of an increase in rotation speed of the disk, comprises a disk motor 12 for rotating the optical disk 100 loaded into an inside thereof, an optical pickup 15 for recording or reproducing information from or onto the optical disk rotated, and a tray 10 for loading the optical disk therein, wherein the tray has a flat surface 10c, being nearly circular in the shape, on which the optical disk is disposed, and a peripheral portion 10d formed surrounding a periphery thereof, and the peripheral portion is nearly equal to an upper surface of the optical disk, and further a distance from a tip portion of the optical disk to be loaded within the apparatus is equal to 1.8 mm or larger than that and equal to 4.0 mm or smaller than that, in particular, preferably it is equal to 2.0 mm or larger and equal to 2.7 mm or smaller.