A calibration method for an optical disk drive is presented. The operating parameters
of an optical disk drive are initially calibrated when the disk drive is produced
or during a repair step. The disk drive is then field calibrated during normal
operation. Operating parameters can be field calibrated during power up. Further,
operating parameters can be field calibrated when a new optical media is inserted
into the optical disk drive. Additionally, operating parameters can be field calibrated
during error recovery.