Patent ID: 6891789

Claim:
An optical disk drive, comprising: an optical pick-up unit; an analog processor coupled to receive signals from detectors in the optical pick-up unit and provide digital signals; at least one processor coupled to receive the digital signals, the at least one processor calculating a control signal; and a driver coupled to control a position of the optical pick-up unit in response to the control signal, wherein the at least one processor executes an algorithm that loads operating parameters of the optical disk drive appropriate for a first media type of an optical media, calculates a tracking error signal from the digital signals with a tracking servo system open, calculates a peak-to-peak value of the tracking error signal, compares the peak-to-peak value with a threshold value to determine a media type of the optical media, and loads operating parameters of the optical disk appropriate for a second media type if the media type is determined to be the second media type.