METHOD TO RECORD DATA ON AND/OR PERFORM OPTIMAL POWER CONTROL FOR INFORMATION STORAGE MEDIUM

摘要

AN INFORMATION STORAGE MEDIUM (D) ON WHICH DATA IS RECORDED AFTER PERFORMING OPTIMUM POWER CONTROL (OPC) AND A METHOD AND APPARATUS TO RECORD/REPRODUCE DATA ON/FROM THE INFORMATION STORAGE MEDIUM, WHEREIN THE RECORDABLE INFORMATION STORAGE MEDIUM HAS A PLURALITY OF RECORDING LAYERS (L0, L1, L2) AND A PICKUP (50) IRRADIATES A BEAM ONTO THE INFORMATION STORAGE MEDIUM, UTILIZE OPERATIONS OF: RECORDING DATA ON AT LEAST A PORTION OF A RECORDING LAYER THROUGH WHICH A TEST BEAM TO FIND AN OPTIMUM RECORDING POWER PASSES BEFORE PERFORMING OPTIMUM POWER CONTROL (OPC) ON A DESIRED RECORDING LAYER AND PERFORMING OPC ON THE DESIRED RECORDING LAYER. THE METHOD AND APPARATUS ALLOW DATA TO BE RECORDED AFTER PERFORMING A TEST TO DETERMINE AN OPTIMUM RECORDING POWER, THUS PROVIDING EFFECTIVE RECORDING/REPRODUCING QUALITY.