Patent ID: 7072288

Claim:
An optical recording apparatus for recording information to an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction, a prepit of respective first and second prepit portions being arranged on a boundary of the respective tracks, the first prepit portion having an address information prepit and a synchronous information prepit, and the second prepit portion having a synchronous information prepit, the prepit of the first prepit portion and the prepit of the second prepit portion being arranged at every two-track pitch in the radial direction, wherein the prepit of the first prepit portion and the prepit of the second pepit portion being arranged with one track displaced in the radial direction, and a gap being provided between the first and second prepit portion, the optical recording apparatus comprising: an irradiation source for irradiating a light spot on the optical recording medium; and control means for controlling an irradiation position of an optical spot from the irradiation source.