Data recording/reproducing device and burst position conversion

Abstract

A data recording/reproducing device for performing positioning control of at least one head using a plurality pairs of burst data recorded on a disk, comprises burst position conversion coefficient initial setting section for initially setting a burst position conversion coefficient, position information calculating section for calculating position information representing a head position shifted from a track center on the basis of one pair of the plurality pairs of burst data and a burst position conversion coefficient obtained at this time, positioning control section for positioning the head to an arbitrary position, at which the pair of burst data used for calculation of the position information can be detected, on the basis of the position information calculated by the position information calculating section, comparing section for comparing first position information indicating a current head position at which the burst position is detectable, with second position information after the head is moved to a predetermined position by the positioning control section on the basis of the first information, and burst position conversion coefficient adjusting section for adjusting the burst position conversion coefficient on the basis of a comparison result of the comparing section such that the difference between the first position information and the second position information is equal to or smaller than a predetermined value.