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Method of overwriting data in write-once information storage medium and data recording and/or reproducing apparatus

A technology for data and equipment, applied in the field of write-once information storage media, which can solve the problems of spending a lot of time searching, unable to read the file system, etc.

Active Publication Date: 2005-11-23
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a conventional data recording and / or reproducing apparatus is designed to read a file system only from a fixed area in an information storage medium, the conventional system cannot read a file from a write-once information storage medium in which the recording position of the file system changes. system
In other words, reproduction compatibility issues may arise
In addition, since a conventional data recording and / or reproducing device writes each updated file system in a different area of ​​the write-once information storage medium, the conventional device may spend a lot of time searching for the final file system

Method used

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  • Method of overwriting data in write-once information storage medium and data recording and/or reproducing apparatus
  • Method of overwriting data in write-once information storage medium and data recording and/or reproducing apparatus
  • Method of overwriting data in write-once information storage medium and data recording and/or reproducing apparatus

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Embodiment Construction

[0021] Specific embodiments of the invention will now be discussed in detail, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. Hereinafter, the embodiments of the present invention are described in order to explain the present invention by referring to the figures.

[0022] FIG. 1 shows the structure of a write-once disc information storage medium 100 having a single recording layer according to an embodiment of the present invention. Referring to FIG. 1 , the storage medium 100 includes a lead-in area 120 , a data area 130 and a lead-out area 140 . The area 121 is formed in the lead-in area 120 for recording a temporary disc defect structure (TDDS) and a space bit map (SBM). A separate area 122 is also formed in the lead-in area 120 for a temporary defect sequence (TDFL). Spare areas 1 and 2 (133 and 134, respectively) are formed at the head and tail of the data area 130, respectively, and are...

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Abstract

A method of overwriting data in a write-once information storage medium and a data recording and / or reproducing apparatus therefor. In the data overwriting method, a command to overwrite new data in a first area of the write-once information storage medium where data has already been recorded is issued. Then, the first area is considered as a defective area, and the new data is recorded in a second area. Thereafter, updated defect management information, including information about the locations of the first and second areas, is recorded in the write-once information storage medium.

Description

technical field [0001] The present invention relates to a write-once information storage medium, and more particularly, to a method of overwriting data in a write-once information storage medium and an apparatus suitable for data recording and / or reproduction of the write-once information storage medium . Background technique [0002] A rewritable information storage medium can overwrite new data in its area occupied by data. However, the write-once information storage medium can only write information only once in its data-storable area. Therefore, data cannot be overwritten in the write-once information storage medium, and already recorded data cannot be deleted or changed. [0003] Typically, a predetermined area of ​​a user data area of ​​an information storage medium is set as a file system storing various information including data recorded in the information storage medium. [0004] In a rewritable information storage medium, an updated fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/0045
Inventor 黄盛凞高祯完李坰根
Owner SAMSUNG ELECTRONICS CO LTD