Recording medium, and method and apparatus for recording/reproducing data in/from the recording medium
AssigneeLG Electronics Inc.
InventorSang Woon Suh
Life of this patent
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Abstract
A recording medium, and a method and apparatus for recording/reproducing data in/from the recording medium are disclosed. The recording medium includes one or more recording layers, and a management area including management information, wherein the management information includes specific information indicating a presence of different format and type of recording layer in the recording medium. The management area is located at a specific recording layer. The format represents a different category in a recording layer and the type is classified by read-only or writable in a recording layer.
Claims31
An optical disc comprising:
- a first recording layer of a first format;
- and
- a second recording layer of a second format that is different from the first format,
- wherein at least one of the first and second recording layers includes a management area storing management information including,
- first information indicating a number of layers of each of the first and second formats;
- second information indicating whether the optical disc is a hybrid disc;
- and
- third information indicating a type of each of the first and second recording layers, the type being one of a read-only layer, a write-once layer and a rewritable layer.
A method for reproducing data from a recording medium, the method comprising:
- reading management information for indicating formats and types of a first recording layer of a first format and a second recording layer of a second format that is different from the first format from a management area of the recording medium, wherein the management information includes,
- first information indicating a number of layers of each of the first and second formats;
- second information indicating whether the recording medium is a hybrid disc;
- and
- third information indicating a type of each of the first and second recording layers, the type being one of a read-only layer, a write-once layer and a rewritable layer;
- and
- determining a reproducing mode to reproduce data from at least one of the first and second recording layers based on the management information.
A method for recording data in a recording medium, the method comprising:
- reading management information for indicating formats and types from a management area of the recording medium, the recording medium including a first recording layer of a first format and a second recording layer of a second format that is different from the first format, wherein the management information includes,
- first information indicating a number of layers of each of the first and second formats;
- second information indicating whether the recording medium is a hybrid disc;
- and
- third information indicating a type of each of the first and second recording layers, the type being one of a read-only layer, a write-once layer and a rewritable layer;
- and
- determining a recording mode to record data on at least one of the first and second recording layers based on the management information.
An apparatus for recording/reproducing data on/from a recording medium, the apparatus comprising:
- a pickup unit configured to record/reproduce data on/from the recording medium which includes a first recording layer of a first format and a second recording layer of a second format that is different from the first format;
- a control unit configured to control the pickup unit to read management information for indicating formats and types of the first and second recording layers from a management area of the recording medium, wherein the management information includes,
- first information indicating a number of layers of each of the first and second formats;
- second information indicating whether the recording medium is a hybrid disc;
- and
- third information indicating a type of each of the first recording layer and second recording layer, the type being one of a read-only layer, a write-once layer and a rewritable layer,
- wherein the control unit is configured to determine a recording/reproducing mode to record/reproduce data on/from at least one of the first and second recording layers based on the management information;
- and
- a processor configured to process data based on the determined recording/reproducing mode.
Dependencies are inferred from the claim text.