JP2005166261A - 記録防止方法 - Google Patents
記録防止方法 Download PDFInfo
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- JP2005166261A JP2005166261A JP2005066213A JP2005066213A JP2005166261A JP 2005166261 A JP2005166261 A JP 2005166261A JP 2005066213 A JP2005066213 A JP 2005066213A JP 2005066213 A JP2005066213 A JP 2005066213A JP 2005166261 A JP2005166261 A JP 2005166261A
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Abstract
【解決手段】 リードイン領域およびリードアウト領域および使用者データ領域を有する記録及び/または再記録可能な記録媒体と、記録媒体を入れるケースを備えたカートリッジとを具備し、前記記録媒体は、所望しない記録または消去から記録媒体上に記録されたデータを保護するために記録防止情報を貯蔵するとともに、前記記録媒体は、DVDまたはDVD−RAWまたはDVD−RWまたはDVD−Rのいずれか一つの規格を満足する媒体であることを特徴とする。
【選択図】 図4
Description
Disc write protection
b4,b3...00b: Disc is not write protected
10b: Disc is write protected
Entire disc shall not be written to except for
drive
test area,and DMA area
11b: Disc is write protected
Entire disc shall not be written to
These bits shall not be modified to other values
Others: Reserved
Group write protection
b4,b3...00b: Group is not write protected
10b: Group is write protected.
User data shall not be written to this block
Others: Reserved
Disc write protection
b4...0b: Disc is not write protected
1b: Disc is write protected
Entire disc shall not be written to except for drive
test area,and DMA area
Group write protection
b4...0b: Group is not write protected
1b: Group is write protected
User data shall not be written to this block
WP...1b: Entire area of disc is write inhibited except for Drive test
zone and Disc identification zone.
0b: Entire area of disc is not write inhibited.
(BP2)Disc status
00b: Indicates that the disc is empty
01b: Indicates that the disc is in Disc-at-once recording mode
02b: Indicates that the disc is in incremental recording mode
03b: Indicates that the disc is finalized where incremental recording is used
others: reserved
(BP3)Disc write protection flag
00b: Indicates that the disc is not write protected
01b: Indicates that the disc is write protected(hard)
02b: Indicates that the disc is write protected(soft)Entire disc shall not be written to except for PCA,etc.
(BP0,1)RMD format
0001h for R
0002h for RW
0003h for R/RW compatible mode
本発明は、記録及び/または再記録可能な記録媒体、特にDVD−RAM、DVD−R、DVD−RWのようなDVD規格のディスクにおいてカートリッジを使用しない裸ディスク状態でも効率よくデータを保護でき、ケースとディスクとのいずれにも記録防止情報があればデータの記録を禁止して使用者にもう一度ディスク及びカートリッジの状態を確認しうる機会を提供することによって、ディスク上に記録されたデータを所望しない記録または消去から効率よく保護しうる。
2 認識溝
Claims (23)
- 光ディスク記録および/または再生装置のための記録防止方法であって、
リードイン領域とリードアウト領域と使用者データ領域全体とを含む記録可能および/または再生可能な記録媒体上に記録されたデータが、所望しない記録または消去から保護され、
前記方法は、
記録防止情報によって提供される記録媒体の状態を確認すること
を具備し、
記録防止情報は、記録媒体のディスク識別地域に、同時に、冗長に貯蔵され、
ディスク識別地域構造はDVD規格を満足し、
前記方法は、
記録媒体の状態に従って記録媒体上へのデータの記録を禁止すること
を具備する
ことを特徴とする記録防止方法。 - 記録媒体の状態の確認は、エラー無しに読み出された冗長に貯蔵された記録防止情報の状態を確認することを具備する
ことを特徴とする請求項1記載の記録防止方法。 - 記録媒体の状態の確認は、エラー無しに読み出されかつ一致状態を有する複数の冗長に貯蔵された記録防止情報を確認することを具備する
ことを特徴とする請求項1記載の記録防止方法。 - 記録媒体がケース内に装着されているかどうかを判断することと、
もし記録媒体またはケースの記録防止情報が記録防止状態に設定されているならば、記録媒体上へのデータの記録を禁止することと
を更に具備する
ことを特徴とする請求項1記載の記録防止方法。 - 記録媒体に冗長に貯蔵された記録防止情報を、ユーザーによって設定された記録防止情報に従って、記録防止状態または記録防止解除状態に更新すること
を更に具備する
ことを特徴とする請求項1記載の記録防止方法。 - 記録防止情報は、記録媒体のリードイン領域およびリードアウト領域のうちの少なくとも1つに貯蔵される
ことを特徴とする請求項1記載の記録防止方法。 - 記録媒体は、DVD−RAM規格を満足する記録可能および/または再生可能な記録媒体である
ことを特徴とする請求項1記載の記録防止方法。 - 記録防止情報は、記録媒体のリードイン領域およびリードアウト領域のうちの少なくとも1つのディスク識別地域に、同時に、冗長に貯蔵され、
記録防止情報は、少なくとも1つのディスク識別地域の各々の物理的に分離した位置に、冗長に貯蔵される
ことを特徴とする請求項1記載の記録防止方法。 - 光ディスク記録および/または再生装置のための記録防止方法であって、
該装置は、カートリッジのケース内に装着された記録媒体上に/からデータを記録および/または再生し、
記録媒体は、データを貯蔵するための使用者データ領域全体と、同時に冗長に貯蔵された記録防止情報とを含み、
記録防止情報は、記録媒体上への新たなデータの記録を防止するかどうかを示し、
ケースは、記録防止方法のための記録防止溝を有し、
前記方法は、
記録防止情報によって提供される記録媒体の記録防止状態と、ケースの記録防止溝の記録防止状態とを判断することと、
もし記録媒体の記録防止状態または記録防止溝の記録防止状態が、記録媒体上への新たなデータの記録を防止する状態であることを示すならば、記録媒体上への新たなデータの記録を防止することと
を具備する
ことを特徴とする記録防止方法。 - もし記録媒体と記録防止溝との記録防止状態が一致しないならば、使用者に知らせること
を更に具備する
ことを特徴とする請求項9記載の記録防止方法。 - 光ディスク記録および/または再生装置のための記録防止方法であって、
リードイン領域とリードアウト領域と使用者領域全体とを含む記録可能および/または再生可能な記録媒体上に記録されたデータが、記録防止情報に基づいて、所望しない記録または消去から保護され、
前記方法は、
記録防止情報によって提供されるデータを、記録可能および/または再生可能な記録媒体から読み出すことと、
前記データに基づいて、記録可能および/または再生可能な記録媒体が記録防止状態または非記録防止状態のどちらに設定されているかを判断することと
を具備し、
記録防止情報は、記録媒体上に冗長に貯蔵される
ことを特徴とする記録防止方法。 - 前記判断は、エラー無しに読み出された少なくとも1つの冗長に貯蔵された記録防止情報に基づいて、記録媒体が記録防止状態または非記録防止状態のどちらに設定されているかを判断することを具備する
ことを特徴とする請求項11記載の記録防止方法。 - 記録可能および/または再生可能な記録媒体は、DVD規格を満足する
ことを特徴とする請求項11記載の記録防止方法。 - 記録媒体は、DVD−RAMまたはDVD−RWまたはDVD−R規格を満足する記録可能および/または再生可能な記録媒体である
ことを特徴とする請求項13記載の記録防止方法。 - 光ディスク記録および/または再生装置のための記録防止方法であって、
リードイン領域とリードアウト領域と使用者データ領域全体とを含む記録可能および/または再生可能な記録媒体上に記録されたデータが、所望しない記録または消去から保護され、
前記方法は、
記録防止情報によって提供される記録媒体の記録防止状態を確認すること
を具備し、
記録防止情報は、記録媒体に、同時に、冗長に貯蔵され、
前記方法は、
記録媒体の記録防止状態に従って、記録媒体上へのデータの記録を禁止すること
を具備し、
記録媒体は、記録媒体上に記録されたデータを所望しない記録または消去から保護するために、記録防止情報を貯蔵し、
記録防止情報は、記録媒体のリードイン領域に、冗長に貯蔵される
ことを特徴とする記録防止方法。 - 冗長に貯蔵された記録防止情報のうちの少なくとも1つが、DVD規格により使用されていない地域として指定されているリードイン領域の地域に貯蔵される
ことを特徴とする請求項15記載の記録防止方法。 - 前記使用されていない地域はディスク識別地域である
ことを特徴とする請求項16記載の記録防止方法。 - 不一致について冗長に貯蔵された記録防止情報を比較し、かつ、もし不一致が検出されるならば、使用者に知らせること
を更に具備する
ことを特徴とする請求項15記載の記録防止方法。 - 記録媒体の記録防止状態の確認は、エラー無しに読み出された冗長に貯蔵された記録防止情報の状態を確認することを具備する
ことを特徴とする請求項15記載の記録防止方法。 - 記録媒体の記録防止状態の確認は、エラー無しに読み出されかつ一致状態を有する複数の冗長に貯蔵された記録防止情報を確認することを具備する
ことを特徴とする請求項15記載の記録防止方法。 - 記録防止情報は、リードイン領域の少なくとも1つの欠陥管理領域に貯蔵される
ことを特徴とする請求項15記載の記録防止方法。 - 記録防止情報は、リードアウト領域の少なくとも1つの欠陥管理領域に更に貯蔵される
ことを特徴とする請求項21記載の記録防止方法。 - 記録媒体は、DVD−RAM規格を満足する記録可能および/または再生可能な記録媒体である
ことを特徴とする請求項15記載の記録防止方法。
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