Patent ID: 7787200

Claim:
A disk-device correcting system comprising: a master-disk producing device that produces a master disk that serves as a pattern when forming a servo signal on a track of a first disk, the master disk including one of a medium for magnetic transfer, a discrete track medium, and a patterned medium; a disk producing device that produces the first disk on which the servo signal is formed on the track using the master disk: a first disk device that includes the first disk produced by the disk producing device, and reads the servo signal recorded on the track of the first disk while correcting the servo signal; and a correction-information storing device that stores master-disk identification information for identifying the master disk, which is specific information that is specific to the master disk, and first correction-information for correcting the servo signal of the first disk produced from the master disk, in a corresponding manner, wherein: the master-disk producing device produces the master disk with the master-disk identification information added, the disk producing device produces the first disk with the master-disk identification information added, using the master disk with the master-disk identification information added, the first disk device obtains, after the first disk with the master-disk identification information added is mounted, the first correction information from the correction-information storing device based on the master-disk identification information of the first disk, and the first correction information includes information for correcting a missing portion of the servo signal on the track.