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Disposable write disk, its spare area management and optical record duplicating unit

A management method and technology of a copying device, applied in the field of optical disk spare area management, can solve problems such as not having spare areas and defect management areas at the same time, and achieve the effect of improving use efficiency

Inactive Publication Date: 2006-03-15
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the distribution specifications of existing write-once optical discs (such as CD-R, DVD-R, etc.) do not have both a spare area and a defect management area.

Method used

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  • Disposable write disk, its spare area management and optical record duplicating unit
  • Disposable write disk, its spare area management and optical record duplicating unit
  • Disposable write disk, its spare area management and optical record duplicating unit

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Embodiment Construction

[0022] The embodiment of the management information recording method for a write-once optical disc of the present invention will be described in detail below with reference to the accompanying drawings. For convenience of description, a write-once disc Blu-ray Disc (BD-WO) will be taken as an example for description.

[0023] Meanwhile, the terms used in the present invention can be selected from general terms widely used at present, and in specific cases, terms selected by the applicant can also be used. In this case, the representative meanings have been described in detail in the description of the related inventions. Therefore, when understanding it, it can be regarded as not a simple word, but to be understood from the overall content.

[0024] figure 2 , image 3 Shown is a detailed schematic diagram of the construction of a write-once disc Blu-ray Disc (BD-WO) to which the present invention is applied.

[0025] The write-once optical disc of the present invention i...

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Abstract

A method for managing spare region of one - time writing optical disc includes distributing above one spare regions containing temporary defect management region when optical disc is copied initially, expanding distributed spare region containing temporary defect management region as per minimum size of decided expansion unit and setting new spare region when optical disc is in operation, applying this mode to make temporary defect management region and spare region of one - time writing optical disc be the same specification.

Description

【Technical field】 [0001] The present invention relates to a method for managing a spare area of ​​a write-once optical disc, especially a method for enlarging or reducing the size of the spare area. 【Background technique】 [0002] As an optical recording medium, an optical disc capable of recording large-capacity data is widely used. Recently, a new high-density optical recording medium (HD-DVD) capable of recording and storing high-quality video data and high-quality audio data for a long period of time is being developed. For example, Blu-ray Disc (Blue-rayDisc). [0003] The Blu-ray Disc (Blu-ray Disc) produced by advanced HD-DVD technology has significantly better performance than the existing DVD. Recently, the world standard style about it has been officially introduced. [0004] The present invention provides various standard solutions related to Blu-ray discs, and provides various standard solutions for write-once Blu-ray discs (BD-WO) following the rewritable Blu...

Claims

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Application Information

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IPC IPC(8): G11B20/10G11B7/00
Inventor 金龙国
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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