OPTICAL RECORDING MEDIUM INITIALIZATION METHOD AND INITIALIZATION DEVICE

摘要

An initialization method for initializing a recording layer of an optical recording medium comprises the steps of: (i) at the start of initialization, irradiating a reference plane different from the recording layer in the optical recording medium with a focal position coarse adjustment light beam different from an initialization light beam for initializing the recording layer and roughly focusing the initialization light beam on the recording layer on the basis of a focus error signal generated from reflected light from the reference plane to partially initialize the recording layer; (ii) focusing the initialization light beam on the recording layer on the basis of a focus error signal generated from reflected light of the initialization light beam from a partially initialized portion of the recording layer; and (iii) initializing the recording layer while controlling the focal position of the initialization light beam on the basis of a focus error signal generated from reflected light from the recording layer of the initialization light beam.