INFORMATION STORAGE MEDIUM AND METHOD AND APPARATUS FOR RECORDING/REPRODUCING DATA ON/FROM THE SAME

摘要

AN INFORMATION STORAGE MEDIUM (D) AND A METHOD AND APPARATUS FOR RECORDING/REPRODUCING DATA ON/FROM THE INFORMATION STORAGE MEDIUM. THE INFORMATION STORAGE MEDIUM INCLUDES A PLURALITY OF RECORDING LAYERS (L1,L2), EACH HAVING A USER DATA AREA (20-L1,20-L2), ON WHICH DATA CAN BE RECORDED BY A PICKUP (50). DATA IS RECORDED IN THE ORDER OF RECORDING LAYERS FROM CLOSEST TO FARTHEST FROM THE PICKUP, AND A RECORDABLE REGION IN A USER DATA AREA OF A RECORDING LAYER ON WHICH DATA IS TO BE RECORDED IS SMALLER THAN THAT IN A RECORDING LAYER BETWEEN THE PICKUP AND THE RECORDING LAYER ON WHICH DATA IS TO BE RECORDED. EACH RECORDING LAYER CONTAINS A RECORDABLE REGION IN A USER DATA AREA AND A OPTIMUM POWER CONTROL (OPC) AREA (13-L1, 13-L2) IN ORDER TO MAINTAIN THE SAME RECORDING/REPRODUCING CHARACTERISTICS BETWEEN THE PLURALITY OF RECORDING LAYERS.