Patent ID: 7310294

Claim:
A method of optical power calibration for calibrating a writing optical power of an optical storage carrier player for writing on a optical storage carrier, the optical storage carrier comprising a central portion, a data storage area located outside the central portion, and a last possible lead-out area located outside the data storage area, the optical storage carrier player comprising an access device for performing a data writing action to write a data onto the data storage area of the optical storage carrier, the method comprising the steps of: (a) defining an outer power calibration area on the optical storage carrier, the outer power calibration area locating outside the data storage area, a starting point of the outer power calibration area is outer comparing to a starting point of the last possible lead-out area, a predetermined length separation existing between the starting points of the outer power calibration area and the last possible lead-out area; (b) performing an optical power calibration in the outer power calibration area by the access device to determine an optimized optical power; and (c) writing the data onto the data storage area by the_access device through applying the optimized optical power; wherein, the predetermined length separation is long enough for writing an ending message after termination of the data writing action.