Patent ID: 8077566

Claim:
A device for writing data to and reading data from an optical media component, the device comprising: a first optical pickup unit for emitting laser beams that are focused by an object lens onto a surface of the optical media component, wherein the first optical pickup unit writes data to the surface of the optical media component on a first path over a width of the surface; and a second optical pickup unit for emitting laser beams that are focused by an object lens onto the surface of the optical media component wherein the second optical pickup unit emits laser beams onto the surface of the optical media component on a second path for use in scanning and tracking data written by the first optical pickup unit, wherein the second path comprises a first segment and following a first course and a second segment created after the first segment and following a second course, wherein the first course is different than the second course, wherein the first segment is associated with a scanning mode of the second optical pickup unit and the second segment is associated with a tracking mode of the second optical pickup unit, and wherein the tracking mode occurs after the scanning mode has located data written by the first optical pickup unit.