Disk-shaped storage medium and tracking method using the same

摘要

A disk-shaped storage medium allowing the redundancy of an address part to be reduced and data to be recorded with a higher density, and a tracking method using the same are provided. In a disk-shaped storage medium in which a track is divided into a plurality of areas and address data are positioned in the plurality of areas, error detection codes are added to data common to adjacent tracks of the address data for identifying the data common to adjacent tracks. This enables the synchronous process to data in reproducing the address data to be carried out without using a unique synchronization pattern.