An optical media storage system comprising: an optical tape comprising lands and grooves wherein a track is formed by a groove located between two lands, and wherein data marks are formed within the groove but may be offset from the centre of the groove; and an optical pickup unit configured to: read data marks from a track of the optical tape; detect a relative position between the optical pickup unit and the data marks by generating a differential phase detection tracking signal indicative of the relative position between the optical pickup unit and the data marks; detect a relative position between the optical pickup unit and the track by generating a main push pull tracking signal indicative of the relative position between the optical pickup unit and the track; filter out frequency content of the differential phase detection tracking signal for frequencies greater than a threshold frequency and filter out frequency content of the main push pull tracking signal for frequencies less than the threshold frequency; and combine the filtered differential phase detection tracking signal and the filtered main push pull tracking signal to generate a hybrid tracking signal; an actuator; and a controller programmed to: command the actuator to position the optical pickup unit based on both of the detected relative positions; and command the actuator to position the optical pickup unit based on the detected relative positions according to the hybrid tracking signal. an optical tape comprising lands and grooves wherein a track is formed by a groove located between two lands, and wherein data marks are formed within the groove but may be offset from the centre of the groove; and an optical pickup unit configured to: read data marks from a track of the optical tape; detect a relative position between the optical pickup unit and the data marks by generating a differential phase detection tracking signal indicative of the relative position between the optical pickup unit and the data marks; detect a relative position between the optical pickup unit and the track by generating a main push pull tracking signal indicative of the relative position between the optical pickup unit and the track; filter out frequency content of the differential phase detection tracking signal for frequencies greater than a threshold frequency and filter out frequency content of the main push pull tracking signal for frequencies less than the threshold frequency; and combine the filtered differential phase detection tracking signal and the filtered main push pull tracking signal to generate a hybrid tracking signal; read data marks from a track of the optical tape; detect a relative position between the optical pickup unit and the data marks by generating a differential phase detection tracking signal indicative of the relative position between the optical pickup unit and the data marks; detect a relative position between the optical pickup unit and the track by generating a main push pull tracking signal indicative of the relative position between the optical pickup unit and the track; filter out frequency content of the differential phase detection tracking signal for frequencies greater than a threshold frequency and filter out frequency content of the main push pull tracking signal for frequencies less than the threshold frequency; and combine the filtered differential phase detection tracking signal and the filtered main push pull tracking signal to generate a hybrid tracking signal; an actuator; and a controller programmed to: command the actuator to position the optical pickup unit based on both of the detected relative positions; and command the actuator to position the optical pickup unit based on the detected relative positions according to the hybrid tracking signal. command the actuator to position the optical pickup unit based on both of the detected relative positions; and command the actuator to position the optical pickup unit based on the detected relative positions according to the hybrid tracking signal.