Patent ID: 8363522

Claim:
A recording device comprising: a rotation driving unit that rotates an optical recording medium having a reference face on which information including radial positional information is recorded by a CAV method (Constant Angular Velocity) and a recording layer formed at a depth position different from the reference face, at a constant velocity; a light irradiating unit that irradiates the optical recording medium with first light to be irradiated onto the recording layer and second light to be irradiated onto the reference face through a common object lens, wherein a wavelength of the first light is different from a wavelength of the second light; an infocus position adjusting unit that performs adjustment to focus the first light at a necessary position in the recording layer with the second light infocused on the reference face; a light receiving unit that receives reflection light of the second light from the reference face; a reproducing clock generating unit that generates a reproducing clock on the basis of a light reception signal obtained by the light receiving unit; a radial position detecting unit that detects the radial positional information recorded on the reference face on the basis of the light reception signal obtained by the light receiving unit and the reproducing clock positional information; a frequency adjusting unit that changes a frequency of an input reference signal according to the radial positional information detected by the radial position detecting unit; and a recording unit that performs mark recording on the recording layer by driving a light source of the first light to emit light using the signal obtained by the frequency adjusting unit as a recording clock.