Patent ID: 6985419
Filing Date: 2006-01-10
Classification: G11B

Abstract:
1. A tracking control method comprising the steps of: (a) measuring an optimum offset by measuring a light beam irradiation state of a light beam while offsetting a tracking target position of the light beam on a recording medium so that an optimum light beam irradiation state is obtained at the tracking target position; and (b) carrying out a tracking control by setting the optimum offset measured by said step (a), wherein said step (a) is carried out in a state where a waveform interference from an adjacent track that is adjacent to a track at the tracking target position is easily generated, wherein said step (a) generates the state where the waveform interference from an adjacent track is easily generated by writing data on the adjacent track with a recording power greater than an optimum recording power with which data is recorded on the track at the tracking target position.