摘要:
In a disc player, a CAL pattern is recorded in a disc-like optical recording medium during a recording stand-by time period, which is yielded by a difference between a data rate in inputting information to a disc player 50 and a recording rate in recording information into the optical recording medium. The CAL pattern is reproduced from the optical recording medium, the reproduced pattern is evaluated, and an irradiation intensity of a laser beam is optimized for recording information in the optical recording medium, by a laser-output controller 30.
摘要:
An information recording apparatus (300) is provided with: a first recording device (302 etc.) for recording the first information into a first area of the first layer; a second recording device (302 etc.) for recording the second information into a predetermined area of the second layer; and a controlling device (305) for controlling the second recording device to record the second information by the laser light, while displacing an edge indicating an innermost or outermost circumference of the predetermined area in which a penetrated area penetrated by the laser light is included in the first area, in a direction to approach an edge of the predetermined area in which the penetrated area is not included in the first area, only by a predetermined length corresponding to a tolerance of a change amount indicating a change in the reproduction quality.
摘要:
An optical disc (100) is provided with a recording region where prescribed clock information (WBL) is preformatted for recording. The clock information is (i) included in a first frequency band that is definable by a first reference frequency (Fstd) (that is impossible for a conventional reproducing device to detect by a detecting method based on a self-correlation) and is (ii) defined by a frequency that is integer times the first frequency.
摘要:
An optical disc (100) is provided with a recording region where prescribed clock information (WBL) is preformatted for recording. The clock information is (i) included in a first frequency band that is definable by a first reference frequency (Fstd) (that is impossible for a conventional reproducing device to detect by a detecting method based on a self-correlation) and is (ii) defined by a frequency that is integer times the first frequency.
摘要:
An information recording medium is provided with: a recording layer (L0 layer, L1 layer) having one or a plurality of predetermined recording areas (CDZ, 101 and the like) in which record data including buffer data in a finalizing process can be recorded; and a management area (CDZ) in which the management information (50a) can be recorded, the management information including first identification information (51a) for identifying whether or not embossed pits are formed in the predetermined recording area.
摘要:
In an information recording medium including at least a first recording layer (L0 layer) capable of recording information and a second recording layer (L1 layer) capable of recording information, an information recording device (300) records information in a predetermined area (12) of the second recording layer by a laser beam which has passed through a transmission area (11) of the first recording layer. The information recording medium (300) includes recording means (302, etc.) for recording the information in the first recording layer or the second recording layer, judgment means for judging whether an unrecorded amount indicating the size of the unrecorded area in the radial direction in the transmission area is smaller than a predetermined amount, and control means used when the unrecorded area is judged to be smaller than the predetermined amount, for controlling the recording means to record information in the predetermined area.
摘要:
An information recording medium (100) is provided with: a first pre-recording area, in which reproducible preformed information including physical address information is recorded in advance and in which preformed address information assigned in advance is not recorded; a second pre-recording area, which is adjacent to the first pre-recording area and in which each of the preformed address information and unreproducible preformed information is recorded in advance; a first recording area, which is adjacent to the second pre-recording area and in which first record information is recorded and which is reproduced by an information reproducing apparatus in reproduction, the first record information including physical address information which can be reproduced by the information reproducing apparatus; and a second recording area, which is adjacent to the first recording area and in which predetermined second record information is recorded.
摘要:
An information recording medium is provided with: a recording layer (L0 layer, L1 layer) having one or a plurality of predetermined recording areas (CDZ, 101 and the like) in which record data including buffer data in a finalizing process can be recorded; and a management area (CDZ) in which the management information (50a) can be recorded, the management information including first identification information (51a) for identifying whether or not embossed pits are formed in the predetermined recording area.
摘要:
An information recording apparatus (300) is provided with: a first recording device (302 etc.) for recording the first information into a first area of the first layer; a second recording device (302 etc.) for recording the second information into a predetermined area of the second layer; and a controlling device (305) for controlling the second recording device to record the second information by the laser light, while displacing an edge indicating an innermost or outermost circumference of the predetermined area in which a penetrated area penetrated by the laser light is included in the first area, in a direction to approach an edge of the predetermined area in which the penetrated area is not included in the first area, only by a predetermined length corresponding to a tolerance of a change amount indicating a change in the reproduction quality.
摘要:
An optical disc (100) is provided with a recording region where prescribed clock information (WBL) is preformatted for recording. The clock information is (i) included in a first frequency band that is definable by a first reference frequency (Fstd) (that is impossible for a conventional reproducing device to detect by a detecting method based on a self-correlation) and is (ii) defined by a frequency that is integer times the first frequency.