Optical disk drive modified for speed and orientation tracking

摘要

An optical disk drive includes a spindle motor to turn an optical disk and an OPU configured to apply an image to a coating within a label region of the optical disk. An encoder is configured for tracking disk speed features on the optical disk in a region distinct from the label region defined on the disk. By tracking the disk speed features, the encoder obtains disk speed data for use in applying the image to the label region.