Write-once optical disc and method for recording management information thereon
First Claim
1. An apparatus for managing a write-once optical disc including one or more sessions, each session having a session number and comprising one or more recording ranges in which data is recorded sequentially, each of the one or more recording range being one of a open recording range having a recordable position and a closed recording range having no recordable position, the apparatus comprising:
- a interface configured to communicate with an external device;
a pickup configured to record/reproduce data to/from the disc directly;
a data processor configured to receive and restore a reproduction signal from the pickup or modulate a signal proper to the disc;
a servo configured to control the pickup to read/record a signal from/to the disc;
a memory configured to store information associated with the disc temporarily; and
a microcomputer operatively coupled to above components—
the interface, the pickup, the data process, the servo and the memory, and configured to control the components so that the apparatus closes all open recording range, except an open recording range having no end address, in an open session so as to close the open session where each open recording range has a recordable area and the open session has the highest session number among the one or more sessions, wherein the microcomputer is configured to control the components so that the apparatus pads with padding data at least one recording-unit subsequent to a last recorded position in each open recording range in the open session being closed, and sets padding identification information in the at least one recording-unit to indicate that the at least one recoding-unit is padded;
the microcomputer configured to control the components so that the apparatus opens a new open session including a new open recording range and a new session number higher that that of the closed session; and
the microcomputer configured to control the components so that the apparatus records, onto a temporary defect management area of the disc, session start information indicating whether or not the new open recording range is a start of the new open session.
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Abstract
A write-once optical disc and a method and apparatus for recording management information of the write-once optical disc, are provided. The method includes closing an opened session by closing all opened sequential recording-units of the opened session, opening a new session having a new sequential recording-unit, and recording session start information on the recording medium. The session start information indicates whether or not the new sequential recording-unit is a start of the new session.
187 Citations
22 Claims
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1. An apparatus for managing a write-once optical disc including one or more sessions, each session having a session number and comprising one or more recording ranges in which data is recorded sequentially, each of the one or more recording range being one of a open recording range having a recordable position and a closed recording range having no recordable position, the apparatus comprising:
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a interface configured to communicate with an external device; a pickup configured to record/reproduce data to/from the disc directly; a data processor configured to receive and restore a reproduction signal from the pickup or modulate a signal proper to the disc; a servo configured to control the pickup to read/record a signal from/to the disc; a memory configured to store information associated with the disc temporarily; and a microcomputer operatively coupled to above components—
the interface, the pickup, the data process, the servo and the memory, and configured to control the components so that the apparatus closes all open recording range, except an open recording range having no end address, in an open session so as to close the open session where each open recording range has a recordable area and the open session has the highest session number among the one or more sessions, wherein the microcomputer is configured to control the components so that the apparatus pads with padding data at least one recording-unit subsequent to a last recorded position in each open recording range in the open session being closed, and sets padding identification information in the at least one recording-unit to indicate that the at least one recoding-unit is padded;
the microcomputer configured to control the components so that the apparatus opens a new open session including a new open recording range and a new session number higher that that of the closed session; and
the microcomputer configured to control the components so that the apparatus records, onto a temporary defect management area of the disc, session start information indicating whether or not the new open recording range is a start of the new open session. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer-readable write-once optical disc comprising:
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one or more sessions, each session having a session number and consisting of one or more recording ranges in which data is recorded sequentially, each of the one or more recording range being one of an open recoding range having a recordable position and a closed recording range having no recordable position; and a temporary defect management area storing therein session start information indicating whether or not each recording range is a start of a session, where a session having the highest number among the one or more sessions is an open session including an open recording range; the one or more sessions, except the session having the highest session number, are closed sessions, each closed session consisting of one or more closed recording ranges and one of the one or more closed sessions including a first closed recording range which includes at least one recording-unit subsequent to a last recorded position in the first closed recording range and having been padded with padded data when closing the first closed recording range; and the at least one recording-unit has padding identification information indicating whether or not the at least one recording unit is padded. - View Dependent Claims (12, 13, 14)
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15. A method of managing a write-once optical disc including one or more sessions, each session having a session number and consisting of one or more recording ranges in which data is recorded sequentially, each of the one or more recording range being one of a open recoding range having a recordable position and a closed recording range having no recordable position, the method comprising steps of:
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(a) closing all open recording range, except an open recording range having no end address and no recorded data, in an open session so as to close the open session, where each open recording range has a recordable area and the open session has the highest session number among the one or more sessions, wherein the step of closing includes; (a-1) padding with padding data at least one recording-unit subsequent to a last recorded position in each open recording range in the session being closed; and (a-2) setting padding identification information in the at least one recording-unit to indicate that the at least one recoding-unit is padded; opening a new open session including a new open recording range and a new session number higher that that of the closed session; and recording, onto a temporary defect management area of the disc, session start information indicating whether or not the new open recording range is a start of a session. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification