RECORDING MEDIUM, MANUFACTURING DEVICE AND METHOD FOR MANUFACTURING RECORDING MEDIUM, PLAYBACK DEVICE AND METHOD FOR PLAYING BACK RECORDING MEDIUM

摘要

In order to suppress an increase in the signal level of a focus servo signal or a focus summation signal in an area where barcode information is to be recorded (for example, a BCA): a recording medium (10) is provided with a playback information recording area (14) and control information recording areas (12, 13); barcode information (121) and boundary information (122) are recorded at a CAV over a plurality of recording tracks in the control information recording area; and the average level of the signal strength when the boundary information is read is greater than or equal to the average level of the signal strength when a first pit portion (1211, P) is read, and is less than the average level of the signal strength when a first unrecorded portion (1212) is read.