JP2007242178A - Method, device, and program for processing file system defect, and medium - Google Patents

Method, device, and program for processing file system defect, and medium Download PDF

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JP2007242178A
JP2007242178A JP2006065369A JP2006065369A JP2007242178A JP 2007242178 A JP2007242178 A JP 2007242178A JP 2006065369 A JP2006065369 A JP 2006065369A JP 2006065369 A JP2006065369 A JP 2006065369A JP 2007242178 A JP2007242178 A JP 2007242178A
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file system
data
area
recording
recorded
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Mitsuaki Kita
光昭 喜多
Tetsuhiro Obata
哲宏 小羽田
Katsumi Akagi
克実 赤木
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B2020/10898—Overwriting or replacing recorded data
    • G11B2020/10907—Overwriting or replacing recorded data using pseudo-overwriting, i.e. virtually or logically overwriting data on WORM media by remapping recorded blocks to alternate areas

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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that needs to mount the program of a defect processing method in a file system since in the file system defect processing method of a recordable recording medium such as a DVD-R, data rearragement is carried out by the file system and management information must be rewritten in a recording error generated area. <P>SOLUTION: A file system retries writing to generate pseudo overwriting in a recording error generated area 102, and data rearrangement such as recording of data to be recorded in the area 102 to another area 103 is performed. Thus, the necessity of rearranging the data or changing the data of a management information area 101 by the file system is eliminated, and mounting of the file system is facilitated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ＢＤ−Ｒ（Ｂｌｕ−ｒａｙ Ｄｉｓｃ Ｒｅｃｏｒｄａｂｌｅ）といった追記可能な記録媒体に対して、擬似上書きを実行することによってデータ再配置を行うファイルシステム欠陥処理方法、装置、プログラム、及び媒体に関するものである。   The present invention relates to a file system defect processing method, apparatus, program, and medium for performing data relocation on a recordable recordable medium such as BD-R (Blu-ray Disc Recordable) by executing pseudo-overwrite It is.

ＤＶＤ−Ｒといった追記可能な記録媒体は、記録済みの領域への上書きが不可能であり、
データ記録時の欠陥処理は、後で述べる欠陥処理方法のプログラムが実装されたファイルシステムによって実行される。ＤＶＤ−Ｒといった追記可能な記録媒体におけるファイルシステムによる欠陥処理方法について、図４を用いて説明する。図４は、ＤＶＤ−Ｒといった追記可能な記録媒体におけるファイルシステム欠陥処理方法を説明するためのデータ配置図である。図４において、４０１は管理情報領域、４０２はデータ記録でエラーが発生した領域、４０３はデータ再配置時に更新された管理情報領域、４０４は４０２で記録エラーとなったデータをファイルシステムによって記録された領域である。領域４０２にデータを記録しようとしたとき、何らかの原因で記録エラーとなった場合、ファイルシステムが管理情報領域４０１のデータを更新するが、ＤＶＤ−Ｒのような追記可能な記録媒体の場合は、管理情報領域４０１の中で上書きすることが不可能なため、別の領域４０３で書き換える（例えば、特許文献１参照）。管理情報領域４０３に管理情報のデータを書き換えることで、データ記録エラーが発生した領域４０２に記録しようとしたデータを、別の領域４０４に記録する。 The recordable recording medium such as DVD-R cannot be overwritten on the recorded area,
The defect processing at the time of data recording is executed by a file system in which a program for a defect processing method described later is installed. A defect processing method using a file system in a recordable recording medium such as a DVD-R will be described with reference to FIG. FIG. 4 is a data layout diagram for explaining a file system defect processing method in a recordable recording medium such as a DVD-R. In FIG. 4, 401 is a management information area, 402 is an area where an error has occurred in data recording, 403 is a management information area updated at the time of data relocation, and 404 is data recorded with a recording error in 402 by the file system. Area. If a recording error occurs for some reason when attempting to record data in the area 402, the file system updates the data in the management information area 401. In the case of a recordable recording medium such as a DVD-R, Since it cannot be overwritten in the management information area 401, it is rewritten in another area 403 (see, for example, Patent Document 1). By rewriting the management information data in the management information area 403, the data to be recorded in the area 402 where the data recording error has occurred is recorded in another area 404.

ところで、ＢＤ−Ｒといった追記可能な記録媒体は、擬似上書きという機能によって、ＤＶＤ−Ｒでは不可能だった記録済みの領域への上書きを実現している。具体的には、ＢＤ−Ｒ記録に対応した記録再生装置に、ＢＤ−Ｒといった追記可能な記録媒体を装着して記録済みの領域のデータを上書きしようとした場合、記録再生装置がそのデータを別の領域に記録するようにすることによって、擬似上書きを実現し、データの上書きが可能になる（例えば、非特許文献１参照）。
特開平９−４４３１８号公報 ＯＳＴＡ（Ｏｐｔｉｃａｌ Ｓｔｏｒａｇｅ Ｔｅｃｈｎｏｌｏｇｙ Ａｓｓｏｃｉａｔｉｏｎ）“Ｕｎｉｖｅｒｓａｌ Ｄｉｓｃ Ｆｏｒｍａｔ Ｓｐｅｃｉｆｉｃａｔｉｏｎ Ｒｅｖｉｓｉｏｎ２．６０”、 ２００５年１月２６日 By the way, a recordable recording medium such as a BD-R realizes overwriting to a recorded area that was impossible with a DVD-R by a function of pseudo-overwriting. Specifically, when a recordable recording medium such as BD-R is mounted on a recording / playback apparatus that supports BD-R recording and an attempt is made to overwrite data in a recorded area, the recording / playback apparatus stores the data. By recording in another area, pseudo-overwriting can be realized and data can be overwritten (for example, see Non-Patent Document 1).
JP 9-44318 A OSTA (Optical Storage Technology Association) “Universal Disc Format Specification Revision 2.60”, January 26, 2005

解決しようとする問題点は、データ記録時の欠陥処理方法として、何らかの原因で記録できなかった領域は、ファイルシステムによるデータの再配置を行い、さらに管理情報の書き換えが必要になるため、ファイルシステムがデータの再配置用および管理情報の更新用の領域を確保しなければならないので、この欠陥処理方法を実行するプログラムをファイルシステムに実装しなければならない。   The problem to be solved is that, as a defect processing method at the time of data recording, an area that could not be recorded for some reason needs to be rearranged by the file system and further rewritten management information. However, since it is necessary to secure an area for data relocation and management information update, a program for executing this defect handling method must be installed in the file system.

本発明は、何らかの原因で記録できなかった領域に対して、ファイルシステムが書き込みリトライを実行することで、擬似上書きを発生させて、記録できなかったデータを再度記録することを最も主要な特徴とする。   The most important feature of the present invention is that the file system executes a write retry to an area that could not be recorded for some reason, thereby generating pseudo-overwrite and recording data that could not be recorded again. To do.

本発明のファイルシステム欠陥処理方法は、擬似上書きによるデータの再配置を行うことにより、前記ＤＶＤ−Ｒのファイルシステム欠陥処理方法で行っていたファイルシステムによるデータの再配置と管理情報の書き換えが不要になるため、ファイルシステムの実装が容易になる利点がある。   The file system defect processing method of the present invention eliminates the need for data relocation and management information rewriting by the file system, which has been performed by the DVD-R file system defect processing method, by performing data relocation by pseudo-overwriting. Therefore, there is an advantage that the file system can be easily implemented.

以下、本発明を実施するための最良の形態について、図面を参照しながら説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

（実施の形態）
図１は、本発明のファイルシステム欠陥処理方法の実施の形態における追記可能な記録媒体のデータの配置図である。図１において、１０１は管理情報領域、１０２はデータ記録でエラーとなった領域、１０３は領域１０２に記録しようとしたデータを擬似上書きによって再配置された領域である。図２は、本発明のファイルシステム欠陥処理方法の実施の形態におけるファイルシステム欠陥処理方法の動作を説明するためのフローチャートである。図３は、本発明の実施の形態におけるファイルシステム欠陥処理装置の構成図である。 (Embodiment)
FIG. 1 is a data layout diagram of a recordable recording medium in the embodiment of the file system defect processing method of the present invention. In FIG. 1, 101 is a management information area, 102 is an area where an error has occurred in data recording, and 103 is an area where the data to be recorded in the area 102 is rearranged by pseudo-overwriting. FIG. 2 is a flowchart for explaining the operation of the file system defect processing method in the embodiment of the file system defect processing method of the present invention. FIG. 3 is a configuration diagram of the file system defect processing apparatus according to the embodiment of the present invention.

以下に、図１から図３を用いて本発明の動作を説明する。図３において、ファイルシステム固有処理部３００が追記型記録媒体３０３にデータ記録を実行すると、書き込み処理部３０１は領域１０２にデータを記録するステップＳ２０１と、記録再生装置からデータ記録の結果が返されることによって領域１０２にデータ記録が正常に実行されたかを判定するステップＳ２０２を実行する。   The operation of the present invention will be described below with reference to FIGS. In FIG. 3, when the file system specific processing unit 300 executes data recording on the write-once recording medium 303, the write processing unit 301 records data in the area 102, and the data recording result is returned from the recording / reproducing apparatus. Thus, step S202 is executed to determine whether data recording has been normally executed in the area 102.

ステップＳ２０２で書き込み処理部３０１が記録再生装置からデータを正常に記録できなかったという結果を受信して、データ記録エラーと判定された場合、書き込みリトライ処理部３０２によって、データ記録エラーが発生した領域１０２に再度データを記録するといった書き込みリトライを実行するステップＳ２０３と、擬似上書きを発生させて領域１０２に記録しようとしたデータを領域１０３に記録するステップＳ２０４が実行される。   In step S202, if the write processing unit 301 receives the result that the data could not be normally recorded from the recording / reproducing apparatus and is determined as a data recording error, the write retry processing unit 302 causes the data recording error to occur. Step S203 for executing write retry such as recording data again in 102, and step S204 for recording data to be recorded in the area 102 by generating pseudo-overwrite in the area 103 are executed.

ステップＳ２０４では、ファイルシステムによって記録エラーが発生した領域１０２に再度記録しようとするといった書き込みリトライを実行すると、記録再生装置は記録エラーが発生した領域１０２に記録しようとしたデータが、上書きデータとして別の領域１０３に記録されるようにした擬似上書きを実行する。   In step S204, when a write retry is performed such that recording is attempted again in the area 102 where the recording error has occurred due to the file system, the recording / playback apparatus determines that the data to be recorded in the area 102 where the recording error has occurred is classified as overwrite data. The pseudo-overwrite recorded in the area 103 is executed.

欠陥処理を擬似上書きで実行することによって、データの再配置は記録再生装置によって行われるため、ＤＶＤ−Ｒでは必要だったファイルシステムによる管理情報領域１０１のデータ書き換えの必要がなくなる。   By executing the defect processing by pseudo-overwriting, the data rearrangement is performed by the recording / reproducing apparatus, so that it is not necessary to rewrite the data in the management information area 101 by the file system, which is necessary in the DVD-R.

本発明にかかるファイルシステム欠陥処理方法は、何らかの原因で記録できなかった領域に対して、ファイルシステムが書き込みリトライを実行することで、擬似上書きを発生させてデータを再配置するため、ファイルシステムによるデータの再配置および管理情報の書き換えが不要になることで、ファイルシステムの実装が容易になるので、追記可能な記録媒体のファイルシステム欠陥処理として有用である。   The file system defect processing method according to the present invention causes a pseudo-overwrite to relocate data by executing a write retry on an area that could not be recorded for some reason. Since it is not necessary to rearrange data and rewrite management information, it is easy to implement a file system, which is useful as a file system defect process for a recordable recording medium.

本発明の実施の形態に於ける欠陥処理時のデータの配置図Arrangement of data during defect processing in the embodiment of the present invention 本発明の実施の形態に於けるファイルシステム欠陥処理方法のフローチャートFlowchart of file system defect processing method in the embodiment of the present invention 本発明の実施の形態に於けるファイルシステム欠陥処理装置の構成図Configuration diagram of a file system defect processing apparatus in an embodiment of the present invention ＤＶＤ−Ｒのファイルシステム欠陥処理におけるデータの配置図Data layout in DVD-R file system defect processing

符号の説明Explanation of symbols

１０１ ファイルなどの管理情報領域
１０２ データ記録エラーが発生した領域
１０３ 擬似上書きによってデータ記録が行われた領域
３００ ファイルシステム固有処理部
３０１ 書き込み処理部
３０２ 書き込みリトライ処理部
３０３ 追記型記録媒体 DESCRIPTION OF SYMBOLS 101 Management information area | regions, such as a file 102 Area | region where data recording error generate | occur | produced 103 Area | region where data recording was performed by pseudo-overwriting 300 File system specific processing part 301 Write processing part 302 Write retry processing part 303 Write-once recording medium

Claims (5)

追記可能な記録媒体にデータを記録したとき、記録エラー発生の有無を検出する検出ステップと、前記検出ステップで記録エラー発生が検出された場合に、記録エラーが発生した領域に対して書き込みリトライを実行する第１ステップと、前記第１ステップの書き込みリトライによって記録エラーが発生した領域に記録しようとしていたデータを別の領域に記録させるという擬似上書きを発生させてデータ再配置を行う第２ステップとを有することを特徴とするファイルシステム欠陥処理方法。 When data is recorded on a recordable recording medium, a detection step for detecting whether or not a recording error has occurred, and when a recording error has been detected in the detection step, a write retry is performed on the area where the recording error has occurred. A first step to execute, and a second step for performing data relocation by generating a pseudo-overwrite in which data to be recorded in an area where a recording error has occurred due to a write retry in the first step is recorded in another area; A file system defect processing method characterized by comprising: 請求項１に記載の方法を実行するファイルシステム欠陥処理装置。 A file system defect processing apparatus for executing the method according to claim 1. 請求項１に記載の方法を実行するプログラム The program which performs the method of Claim 1 請求項１に記載のプログラムを記録した媒体。 A medium in which the program according to claim 1 is recorded. 請求項１に記載のファイルシステム欠陥処理方法によって記録されることを特徴とする追記可能な記録媒体。 A recordable recording medium recorded by the file system defect processing method according to claim 1.
JP2006065369A 2006-03-10 2006-03-10 Method, device, and program for processing file system defect, and medium Pending JP2007242178A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2240932A1 (en) * 2008-01-10 2010-10-20 Samsung Electronics Co., Ltd. Information recording medium, recording/reproducing apparatus and recording/reproducing method
CN108958968A (en) * 2017-05-17 2018-12-07 中兴通讯股份有限公司 A kind of document handling method and device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2240932A1 (en) * 2008-01-10 2010-10-20 Samsung Electronics Co., Ltd. Information recording medium, recording/reproducing apparatus and recording/reproducing method
EP2240932A4 (en) * 2008-01-10 2014-05-21 Samsung Electronics Co Ltd Information recording medium, recording/reproducing apparatus and recording/reproducing method
CN108958968A (en) * 2017-05-17 2018-12-07 中兴通讯股份有限公司 A kind of document handling method and device
CN108958968B (en) * 2017-05-17 2023-12-22 中兴通讯股份有限公司 File processing method and device

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