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.
Claims18
A multi-layer optical disc, comprising:
- a plurality of recording layers including a first recording layer and a second recording layer;
- and
- management information, recorded in a lead-in area of at least the first recording layer, for identifying a respective status of each of the recording layers as formatted or unformatted, and the management information being not recorded in a second recording layer.
A method for managing layer formatting of a multi-layer optical disc, the method comprising:
- (a) reading management information indicating a respective formatting status of each one among the recording layers as formatted or unformatted, the management information being recorded in a lead-in area of a first recording layer of the multi-layer optical disc, and the management information being not recorded in a second recording layer;
- (b) determining formatting status of one or more recording layers formatted based on the read management information;
- and
- (c) performing a formatting operation for at least one unformatted recording layer according to a result of the determination.
A method for managing layer formatting of a multi-layer optical disc, the method comprising:
- a) reading management information indicating formatting status of each one among the recording layers, the management information being recorded in a specified area of the multi-layer optical disc;
- (b) determining formatting status of one or more recording layers formatted based on the read management information;
- and
- (c) performing a formatting operation for at least one unformatted recording layer according to a result of the determination;
- wherein the step (c) includes generating and outputting an image of a message indicating that all recording layers are not formatted if none of the recording layers are formatted as the result of the determination, and performing the formatting operation in response to users selection.
A method for managing layer formatting of a multi-layer optical disc, the method comprising:
- (a) reading management information from a control information area located in a lead-in area of a first recording layer of the optical disc, the management information indicating respective formatting status of the recording layers as formatted or unformatted, and the management information being not recorded in a second recording layer;
- and
- (b) identifying unformatted or formatted recording layers of the multi-layer optical disc based on the management information.
A machine-actionable memory comprising a plurality of machine-actionable records arranged according to a data structure, the data structure including:
- at least two user-data areas provided on at least two of the multiple layers of the optical disc, respectively;
- and
- a management area to store management information for accessing the multi-layer optical disc, the management area being located in a lead-in area of a first recording layer of the multiple layers, being not recorded in a second recording layer, and including:
- a formatting status information to store a respective indication of whether each one of the multiple layers is formatted or unformatted.
Dependencies are inferred from the claim text.