An apparatus comprises a data storage medium having a plurality of servo
sectors and a plurality of data sectors, wherein each of the servo
sectors includes a phase locked loop field and a track identification
field, a controller for controlling the position of a recording head with
respect to the data storage medium, and a servo demodulator for
recovering timing information from both the phase locked loop field and
the track identification field, and for producing a timing estimate. The
method performed by the apparatus is also included.