A METHOD AND SYSTEM FOR CONTROLLING WRITING POWERS FOR A PLURALITY OF LASER BEAMS

摘要

A method of controlling writing powers for a plurality of laser beams during writing an optical disc, said method comprising the steps of: - detecting (520) a laser beam (C) arriving at an area previously written by another laser beam (D), - checking (530) the writing quality of the area written by the laser beam (C) that arrived at the area, and - adjusting (540) the writing power of said another laser beam (D) according to the checked writing quality.