Recording medium with overlapping segment information thereon and apparatus and methods for forming, recording, and reproducing the recording medium

Abstract

A recording medium, such as a high density and / or optical recording medium including segment information recorded thereon, and an apparatus and method for recording to and reproducing from the recording medium, for enhanced data protection, data management and / or reproduction compatibility. The recording medium may contain at least one session area, which is an area on the disc controlled by a plurality of active PACs, and if the specified session areas overlap each other, the control information of the PACs controlling the overlapping area may be applied to control the overlapping area .

Description

technical field

[0001] The present invention relates to managing physical access control (PAC) and recorded data, media containing PAC and recorded data (e.g., high-density optical discs such as Blu-ray discs), and methods for recording data to and / or reproducing data from the media Apparatus and methods. Background technique

[0002] Media such as optical discs may be used to record large amounts of data. Among the available optical discs, new high-density optical media (HD-DVD) such as Blu-ray Disc (hereinafter referred to as "BD") are being developed, which allow recording and / or storage of more high-definition video and / or or audio data.

[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 the possible incompatibilities between different versions of the driver, e.g. an earlier version of a driver with an earlier set of capabilities may b...

Examples

Embodiment Construction

[0025] Best Mode for Carrying Out the Invention

[0026] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts.

[0027] In an exemplary embodiment, the term "Physical Access Control (PAC)" may also include, in addition to its ordinary and customary meaning, information recorded on a disc for managing / controlling the entire disc or within a physical area of ​​the disc. Additional information for data recording and reproduction of a specific segment. The term "physical access control (PAC)" may be referred to simply as "PAC," "PAC information," and / or "PAC control information." Also, an area within a disc on which a PAC is recorded may be referred to as a "PAC area", and a PAC recorded in the PAC area in units of clusters may be simply referred to as a "PAC cluster".

...

technical field

[0001] The present invention relates to managing physical access control (PAC) and recorded data, media containing PAC and recorded data (e.g., high-density optical discs such as Blu-ray discs), and methods for recording data to and / or reproducing data from the media Apparatus and methods. Background technique

[0002] Media such as optical discs may be used to record large amounts of data. Among the available optical discs, new high-density optical media (HD-DVD) such as Blu-ray Disc (hereinafter referred to as "BD") are being developed, which allow recording and / or storage of more high-definition video and / or or audio data.

[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 the possible incompatibilities between different versions of the driver, e.g. an earlier version of a driver with an earlier set of capabilities may b...

Examples

Embodiment Construction

[0025] Best Mode for Carrying Out the Invention

[0026] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts.

[0027] In an exemplary embodiment, the term "Physical Access Control (PAC)" may also include, in addition to its ordinary and customary meaning, information recorded on a disc for managing / controlling the entire disc or within a physical area of ​​the disc. Additional information for data recording and reproduction of a specific segment. The term "physical access control (PAC)" may be referred to simply as "PAC," "PAC information," and / or "PAC control information." Also, an area within a disc on which a PAC is recorded may be referred to as a "PAC area", and a PAC recorded in the PAC area in units of clusters may be simply referred to as a "PAC cluster".

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