摘要:
A recordable optical disc (20) on which information is recorded by applying a light beam on the surface thereof, includes: a first recording area (22 - 25) on which information is recorded and reproduced while the disc is rotated at a first linear velocity; and a second recording area (26- 28) on which information is recorded and reproduced while the disc is rotated at a second linear velocity. Each of the first recording area and the second recording area includes a test recording area (22, 26) for use in determining optimum recording power of the light beam for recording information in the recording area, respectively.
摘要:
A recordable optical disc (20) on which information is recorded by applying a light beam on the surface thereof, includes: a first recording area on which information is recorded and reproduced while the disc is rotated at a first linear velocity; and a second recording area on which information is recorded and reproduced while the disc is rotated at a second linear velocity. The first recording area and the second recording area include guide grooves having wobble frequency lower than frequency band of EFM signal.
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).