Optical recording medium and recording device for this...

Details Optical recording medium and recording device for this... Optical recording medium and recording device for this...

2011-01-25

2011-01-25

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S116000, C369S275300

Reexamination Certificate

active

07876655

ABSTRACT:
In the present invention, in order to permit recording operation of data by optimum recording power even at any recording position of inner circumference and outer circumference of an optical disc (1), PCAs (Power Calibration Areas) serving as a trial write area for adjusting recording power of laser beams are respectively provided at the inner circumferential side and the outer circumferential side of the optical disc (1) in the state where program area is put therebetween. In recording data into the program area of the optical disc (1), one PCA near from the recording position of data is selected to perform trial write operation to set write power of laser beams on the basis of trial write data to thereby permit recording operation of data at optimum laser power.

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