Patent ID: 7447128
Filing Date: 2008-11-04
Classification: G11B

Abstract:
1. A method for performing an optimal recording power calibration (OPC) operation prior to recording data on an optical disc, the method comprising: accessing data previously stored in a management area of the optical disc; searching a set/unset status of a plurality of indicators; retrieving first position information from the management area corresponding to a set indicator; performing a new OPC operation in a previously unrecorded area of the optical disc, wherein the previously unrecorded area's position is based upon the retrieved first position information; recording second position information indicating the area where the new OPC operation was performed in the management area; and setting an indicator to indicate that the recorded second position information is associated with the latest OPC operation, wherein the first position information corresponds to an area on the optical disc which was last tested in a previous OPC operation, wherein said step of setting an indicator includes setting a flag bit in the management area, and wherein the flag bit is provided adjacent to the recorded second position information.