Optical disk, optical disk apparatus, and optical disk tracking error determination method

摘要

In this invention, track address information is recorded at a portion different from a recording track along user data by a land pre-pit, wobbled groove interrupt, wobble stop, or a projecting portion formed at a land/groove boundary. With the address information, the track position can be detected at least once per data length of the minimum recording unit. To increase the recording frequency of tracking error detection information, instead of recording the absolute address value of a track, information representing a position in tracks divided into groups is recorded.