A method and apparatus for storing position offset information not used
for aligning the read element of an MR head with the centerline of
written data, during a read operation. The skew or offset between the
read and the write elements on a read head is first calibrated. The
offset information then stored on one or more dedicated tracks of the
disk. To accomplish this, the write element is aligned with the
centerline of the dedicated track. The position offset information is
then written in the data field of the dedicated track. During the
power-on process, the read element is aligned with the centerline of the
dedicated track and the position offset information may be retrieved by
simply reading the information previously stored on the dedicated track.