To obtain successful address detection accuracy, also to crosstalk with wobble signals in adjoining recording tracks in a disk-like recording medium where at least only one side wall of the recording tracks is wobbled and address information is recorded.

For example, as for modulation areas in each of which FM modulated address information is recorded and non-modulation areas in each of which non-modulation signals made constant by a carrier frequency of an FM modulation signal recorded in the modulation area are recorded, the modulation areas and the non-modulation areas are continuously and alternately arranged in a track circumference direction and arranged so that the modulation areas are not adjoined each other between the respective adjoining tracks. Thus, the modulation areas and the non-modulation areas are surely overlapped between the adjoining tracks and the generation of the crosstalk that pieces of address information recorded in the modulation areas are intermingled between the tracks is prevented.