Recordable optical disk.

摘要

An apparatus for recording information on a recordable optical disc (1) by applying a light beam on the surface thereof, the disc includes a first recording area on which information is recorded and reproduced while the disc is rotated at a first linear velocity (CLV1); and a second recording area on which information is recorded and reproduced while the disc is rotated at a second linear velocity (CLV2). The first recording area includes a test recording area. The apparatus includes recording power determining unit for determining first optimum recording power (P1) for recording information on the first area by a test recording utilizing the test recording area, and for determining second optimum recording power (P2) for recording information on the second area by multiplying the first optimum recording power by a predetermined constant (K). <IMAGE>