Recording medium with physical access control (PAC) cluster thereon and apparatus and methods for forming, recording, and reproducing the recording medium

A technology for recording media and physical access, applied in the direction of digital recording/reproduction, digital signal formatting, etc., can solve problems such as difficult drive interaction and drive incompatibility, and achieve robust protection and prevent unauthorized access.

Active Publication Date: 2007-03-07
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Currently, one problem with existing systems is that there may be incompatibilities between different versions of the driver, for example, a previous version of a driver with a previous set of capabilities may be difficult to integrate with and include at least one of the capabilities from a later set Capability of Drive Interaction Media Interaction

Method used

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  • Recording medium with physical access control (PAC) cluster thereon and apparatus and methods for forming, recording, and reproducing the recording medium
  • Recording medium with physical access control (PAC) cluster thereon and apparatus and methods for forming, recording, and reproducing the recording medium
  • Recording medium with physical access control (PAC) cluster thereon and apparatus and methods for forming, recording, and reproducing the recording medium

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[0034] Best Mode for Carrying Out the Invention

[0035] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0036] FIG. 1 illustrates a PAC area on a high-density optical disc according to an exemplary embodiment of the present invention.

[0037] Referring to FIG. 1, a high-density optical disc may be partitioned from an inner circle to an outer circle into a lead-in area, a data area and a lead-out area. The lead-in area can be further partitioned into an INFO2 area and an INFO1 area above for recording various information. The INFO2 area and / or the INFO1 area may include a PAC (Physical Access Control) area.

[0038] For convenience, the PAC area allocated to the INFO2 area is marked as the PACII area, and the PAC area allocated to the INFO1 area is marked as the PACI ar...

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Abstract

A recording medium, such as a high density and/or optical recording medium, having physical access control (PAC) information included thereon, and apparatus and method for recording to and reproducing from the recording medium, for the purpose of enhancing data protection , data management and/or reproduction compatibility.

Description

technical field [0001] The present invention relates to PAC (Physical Access Control), PAC areas, PAC clusters, media (for example, high density optical discs such as Blu-ray Discs) containing PAC areas and / or clusters, and methods for recording to and / or from such media Apparatus and method for reproducing data. Background technique [0002] Media such as optical discs may be used to record large amounts of data. Among various available optical discs, high-density optical media (HD-DVD) which allow recording and / or storage of more high-density video and / or audio data, such as Blu-ray discs (hereinafter referred to as "BD"), are under development. [0003] BD also includes Blu-ray Disc Rewritable (BD-RE), Blu-ray Disc Write-once (BD-WO), and Blu-ray Disc Read-Only (BD-ROM). [0004] Currently, one problem with existing systems is that there may be incompatibilities between different versions of the driver, for example, a previous version of a driver with a previous set of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/12G11B20/10
Inventor 朴容彻
Owner LG ELECTRONICS INC
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