A calibration for a tracking error signal gain in a tracking servo system of
an
optical disk drive is presented. The calibration determines the peak-to-peak tracking
error signal when the tracking servo system is open, calculates a gain factor in
response to the peak-to-peak tracking error signal, and calculates a new tracking
error signal gain based on the tracking error signal gain and the gain factor.
New tracking error signal gains are calculated until the gain factor is approximately one.