High-density multi-layer optical disc and method for managing layer formatting thereof
AssigneeLG Electronics Inc.
InventorSang Woon Suh
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Abstract
A high-density multi-layer optical disc and a method for managing layer formatting thereof. A high-density multi-layer optical disc such as a Blu-ray disc rewritable (BD-RE) dual layer includes management information, additionally recorded in a lead-in area, needed for identifying formatting status of a plurality of recording layers. After the management information is referred to, at least one unformatted recording layer is automatically formatted. Optionally, the unformatted recording layer is formatted on the basis of a formatting method selected by a user. The multiple recording layers formed on the high-density multi-layer optical disc can be conveniently and effectively formatted.
Claims22
A multi-layer optical disc, comprising:
- a plurality of recording layers formed thereon;
- and
- a management information area formed in at least one of the plurality of recording layers, wherein the management information area includes management information required to record or reproduce data, the management information includes status information identifying formatting status of each recording layer, and position information associated with last formatted positions for each recording layer.
A method of managing a formatting operation of a multi-layer optical disc, the method comprising:
- (a) reading management information from a specified area of the multi-layer optical disc, wherein the management information includes status information and position information for respective recording layers, the status information indicating a formatting status of a corresponding recording layer and the position information including a last formatted position in a corresponding recording layer;
- (b) determining a recording layer and a position to be formatted based on the read management information;
- and
- (c) performing a formatting operation based on a result of step (b).
An apparatus for managing a formatting operation of a multi-layer optical disc, the apparatus comprising:
- (a) a reading/recording unit configured to read management information from a specified area located at one recording layer of the multi-layer optical disc, wherein the management information includes status information and position information for respective recording layers, the status information indicating a formatting status of corresponding recording layer and the position information including a last formatted position in a corresponding recording layer;
- and
- (b) a controller configured to determine a recording layer and a position to be formatted based on the read management information, and control the read/recording unit to perform a formatting operation by background formatting method from the position to be formatted in the corresponding recording layer as a result of the determination.
Dependencies are inferred from the claim text.