摘要:
In a test disc, data (test data) is recorded in such a manner as to fill an entirety of a data region and, next to this test data, border-out data is recorded which contains information indicating that recording is prohibited. By determining whether the data can be played back appropriately from a position in the vicinity of an outer periphery of the disc where playback characteristics are apt to be unstable, whether the data can be played back appropriately from all of the regions is verified. Also, by determining whether it is possible to recognize that test disc is capable of recording, it is verified whether the border-out data can be smoothly acquired from the position in the vicinity of the outer periphery of the disc where playback characteristics are apt to be unstable.
摘要:
Data is recorded on an optical disc using a combination of a user data area where user data is recorded, a control data area for reproduction provided on an inner radius side of the user data area, and an outer guard zone provided on an outer radius side of the user data area as a unit of one recording operation. In this configuration, a track pitch TP of the optical disc is greater than or equal to 0.3 μm and smaller than or equal to 0.4 μm, and the width of the outer guard zone along a radius direction of the optical disc is greater than or equal to a value of (100×TP) and smaller than or equal to a value of (125×TP).
摘要:
In an optical disk recording method of recording data onto a recordable optical disk which includes a data zone where data is recorded and a management data zone where management data indicating the recorded part of the data zone is recorded, an extended management data zone in which the management data is to be recorded is set in the data zone in response to an extension instruction.
摘要:
High efficiency recording is carried for recording recording data generated by a second recording system signal processing circuit 11 to a recording disc corresponding to an existing first standard, and in this case the recording data generated by the second recording system signal processing circuit 11 is selectively recorded to the first recording disc based on one of a first or a second standard. In this way, high efficiency recording is possible regardless of whether data has a recording format corresponding to the first standard or the second standard.
摘要:
Data is recorded on an optical disc using a combination of a user data area where user data is recorded, a control data area for reproduction provided on an inner radius side of the user data area, and an outer guard zone provided on an outer radius side of the user data area as a unit of one recording operation. In this configuration, a track pitch TP of the optical disc is greater than or equal to 0.3 μm and smaller than or equal to 0.4 μm, and the width of the outer guard zone along a radius direction of the optical disc is greater than or equal to a value of (100×TP) and smaller than or equal to a value of (125×TP).
摘要:
In an optical disk recording method of recording data onto a recordable optical disk which includes a data zone where data is recorded and a management data zone where management data indicating the recorded part of the data zone is recorded, an extended management data zone in which the management data is to be recorded is set in the data zone in response to an extension instruction.
摘要:
When a record decision unit 22 judges that recording has been interrupted, the recording data in a predetermined frame is ended. Data are continuously recorded onto a disk until the frame synchronous signal duration following the predetermined frame. Thereafter, the control output generated from the head output controller 14 is controlled to interrupt the recording operation. When the record decision unit 22 judges the resuming of recording, the control output from the head output controller 14 is controlled to resume the recording operation onto the disk from the frame synchronous signal duration in which the recording of data onto the disk has been interrupted.
摘要:
In a test disc, data (test data) is recorded in such a manner as to fill an entirety of a data region and, next to this test data, border-out data is recorded which contains information indicating that recording is prohibited. By determining whether the data can be played back appropriately from a position in the vicinity of an outer periphery of the disc where playback characteristics are apt to be unstable, whether the data can be played back appropriately from all of the regions is verified. Also, by determining whether it is possible to recognize that test disc is capable of recording, it is verified whether the border-out data can be smoothly acquired from the position in the vicinity of the outer periphery of the disc where playback characteristics are apt to be unstable.
摘要:
Data of capacity of about one-severalth of full capacity of a layer 0 and a layer 1 is recorded in a test disk in a range from the layer 0 to the layer 1, and middle areas of the layer 0 and the layer 1 are expanded accordingly. This test disk is mounted on a verification target drive, and an inquiry about a starting position of the middle area, a record finishing position of user data, additional writing stating position of the disk and an additionally writable capacity (free capacity) is made with the verification target drive from an evaluation apparatus. When responding appropriately to this inquiry, the verification target drive is capable of appropriately recognizing presence/absence of an expansion of the middle area, a propriety of additional writing of this disk, the additionally writable capacity, and the additional writing starting position. Therefore, the verification target drive is determined to be capable of performing recording operation from an appropriate recording position when a write once type HDDVD is in an additionally writable state.
摘要:
To provide an optical disk recording apparatus capable of signal recording onto a disk using a laser emitted from an optical pick-up. Signals temporarily stored in the buffer RAM (10) are read, and recorded onto a disk (1). When the amount of signal data in the buffer RAM (10) decreases below a predetermined amount as signals are read therefrom while the read signals are recorded onto the disk (1), the signal recording onto the disk (1) is suspended. When the amount of signal data in the buffer RAM (10) increases to the predetermined amount, the signal recording onto the disk (1) is resumed. The number of occurrences of signal recording suspension and resumption due to the shortage of signals in the buffer RAM (10) is counted.