200822091 九、發明說明 【發明所屬之技術領域】 本發明係有關於光記媒體、光記錄裝置、光記錄系統 、及判定方法。更特別地，本發明係有關於適合用於記錄 由css (內容加擾系統）所編碼的內容之光記錄媒體、使 用光記錄媒體作爲主記錄媒體的光學記錄裝置、設有光記 錄裝置的光記錄系統、以及判定光記錄媒體是否支援由 css所編碼的內容。 【先前技術】 例如電影等影像內容係由所謂的c S S (內容加擾系統 )之加密系統來予以編碼。DVD-ROM(數位影音光碟· ROM)在銷售時會帶有用以將記錄的力卩擾碼解密之鑰資訊 。用以再生影像內容的播放裝置係組構成根據記錄於 DVD-ROM上的鑰資訊以將力卩擾的影像內容解密。舉例而 言，請參考日本公開專利申請號1 1 - 1 76090。以此方式， 保護影像內容的著作權。鑰資訊係儲存於配置在dvd_ RO Μ的內軌側上的預定區域中。 目前市場市販售的可記錄的DVDs無法將鑰資訊記錄 於其上。舉例而言，提供例如DVD-R(可記錄的DVD-)及 DVD-RW(可改寫DVD-)等DVD-系統光學記錄媒體，以致 於在對應於上述的DVD-ROM的預定區之光記錄媒體的區 域中執行浮凸（emboss )處理。提供例如DVD + R(可記錄 的DVD + )及DVD + RW(可改寫DVD + )等DVD +系統光學記 200822091 錄媒體，以致於在對應於上述的DVD-ROM的預定區之區 域爲防寫區，再有的記錄裝置或記錄系統無法在此防寫區 中執行寫入。舉例而言，請參考2003年12月第1版的 ECMA-349標準「使用+R框式的120 mm及80 mm光碟上 的資料互換一容量：每側4.7及1.46 G位元組」；及 2003年12月第2版的ECMA-337標準「使用+RW框式的 120 mm及80 mm光碟上的資料互換一容量：每側4.7 及1.46 G位元組」。 近年來，隨著網際網路的散佈，經由網際網路下載影 像內容被視爲影像內容的購買樣式。但是，即使使用可記 錄的DVD，仍然無法將鑰資訊記錄於媒體的預定區中。因 此，無法以可再生的狀態將下載的編碼影像內容記錄於 DVD 上。 【發明內容】 根據本發明的一態樣，提供有克服上述問題之改進的 光記錄媒體。 根據本發明的一態樣，提供有一光記錄媒體，由CS S 所編碼的內容可以以可再生狀態記錄於其上。 根據本發明的一態樣，提供有光記錄裝置及光記錄系 統，其適用於將由c S S所編碼的內容以可再生狀態記錄於 本發明的光記錄媒體上。 根據本發明的一態樣，提供有一判定方法，其適於很 容易地判定光記錄媒體是否支援記錄由C S S所編碼的內容 200822091 在解決或減少上述問題之一或更多的本發明的實施例 中，提供有可記錄的光記錄媒體，其具有螺旋形狀或同心 圓形狀的軌道及包含具有管理資訊區和資料區的記錄區， 其中，光記錄媒體係組構成由內容加擾系統C S S所編碼的 內容之鑰資訊可以記錄在管理資訊區中。 藉由使用上述光記錄媒體，由CSS所編碼的內容之鑰 資訊可以記錄在媒體的管理資訊區中。結果，能夠以可再 生的狀態記錄由css所編碼的內容。 在解決或減少上述問題之一或更多的本發明的實施例 中，提供有一光記錄裝置，其使用上述光記錄媒體作爲主 媒體，光記錄裝置包括：判定單元，係組構成判定判別資 訊是否記錄於光記錄媒體上，判別資訊係指示由內容加擾 系統CSS所編碼的內容之鑰資訊是可記錄的；及記錄單元 ，係組構成當判定單元判定判別資訊記錄於光記錄媒體上 時將由CSS所編碼的內容以及鑰資訊分別記錄於光記錄媒 體的資料區及管理資訊區中。 藉由使用上述記錄裝置，可以由判定單元來判定判別 資訊是否記錄於光記錄媒體上，判別資訊係指示由c S S所 編碼的內容之鑰資訊是可記錄的。當判別資訊記錄於光記 錄媒體上時，記錄單元將由CSS所編碼的資料記錄於光記 錄媒體的的資料區中以及將鑰資訊於光記錄媒體的管理資 訊區中。因此，由CSS所編碼內容及其鑰資訊可以記錄於 光記錄媒體上。結果，能夠以可再生狀態，將由c S S所編 200822091 碼內容記錄於光記錄媒體上。 在解決或減少上述問題之一或更多的本發明的實施例 中，提供判定方法，判定光記錄媒體是否支援記錄由內容 加擾系統c S S所編碼的內容，判定方法包括：判定判別資 訊是否記錄於光記錄媒體上，判別資訊係指示由內容加擾 系統css所編碼的內容之鑰資訊是可記錄的；及當判定步 驟判定判別資訊記錄於光記錄媒體上時將由CSS所編碼的 內容以及鑰資訊分別記錄於光記錄媒體的資料區及管理資 訊區中。 藉由使用上述判定方法，判定判別資訊是否記錄於光 記錄媒體上。當判別資訊記錄於光記錄媒體上時，判定光 記錄媒體支援記錄由c S S所編碼的內容。因此，能夠很容 易地判定光記錄媒體是否支援記錄由c S S所編碼的內容。 【實施方式】 將參照附圖來說明本發明的實施例。 圖1顯示本發明的實施例中的光記錄媒體之光碟1 5 的結構。 如圖1所示，溝槽G爲螺旋狀的導槽，形成於光碟 1 5的記錄層中。一般而言’當從雷射光的入射方向觀視光 碟時，凸狀部份稱爲溝槽G，而凹陷部份稱爲陸面L。在 本實施例中，溝槽G構成用以記錄資料的軌道’且資料係 記錄於溝槽G上。 如圖2所示之典型實例，每一軌道在從內軌側至外軌 200822091 側的方向上分成包含導入區（導入帶）、資料區（資料帶 )、及導出區（導出帶）等多個區。 導入區是管理資訊區，於其中儲存有管理資訊等。資 料區是儲存使用者資料的區域。導出區是儲存用以指向資 料結束的位置之資訊。在圖2中，爲了簡便起見，假設軌 道是形成爲直線狀，圖式的左側是光碟1 5的內軌道側， 圖式的右側是光碟1 5的外軌道側。 如圖3所示之實例，軌道是以相對於軌道中心而爲形 成擺動狀。在此情況中，軌道間距等於0.74微米。 軌道的擺動狀是由ADIP(先前溝槽中的位址）單元及載 體所決定。AD IP單元含有不同種類的資訊。載體係用來 產生參考時鐘訊號。在下面的實施例中，由 ADIP單元及 載體區構成的基底單元稱爲資訊框。 如圖4所示之實例，假設載體的一循環（稱爲擺動循 環）係以一擺動來予以表示時，一資訊框的尺寸以93個 擺動（擺動號〇·92 )表示。在圖4的實施例中，擺動號〇-7構成ADIP單元，擺動號8-92構成載體區。 ADIP單元包含擺動號0-3的區域（同步資訊區）及 擺動號4-7的區域（ADIP資訊區）。每一上述資訊區係 分別受到相位調變（或相位移鍵控PSK)。 舉例而言，在ADIP資訊區中，四個擺動表示一位元 資料。如圖5 A所示，當位元資料爲「〇」時，二前端擺動 係形成爲具有與載體區的相位相同的相位，而二後端擺動 係形成爲具有與載體區的相位相反的相位。 -8- 200822091 另一方面，如圖5B所示，當位元資料爲「1」時，二 前端擺動係形成爲具有與載體區的相位相反的相位，而二 後端擺動係形成爲具有與載體區的相位相同的相位。 如圖6A所示，當下面資訊框中的ADIP資訊區指示 資料的啓始位元時，同步資訊區指示字同步訊號，亦即， 同步資訊區的所有四個擺動係形成爲具有與載體區的相位 相反的相位。 如圖6B所示，當位元資料係包含於ADIP資訊區中 時，同步資訊區指示位元同步訊號，亦即，同步資訊區的 一前端擺動係形成爲具有與載體區的相位相反的相位，而 其餘三個擺動係形成爲具有與載體區的相位相同的相位。 如圖7所示，一個ADIP字以52個資訊框表示。在導 入區中的ADIP單元含有實體框式資訊。在本實施例中， 實體框式資訊除了只有實體框式資訊的位元組16被改變 之外，其餘與DVD+ R標準要求（請參見ECMA-349標準 )或DVD + RW標準要求（請參見標準ECMA-3 3 7 )所揭示 的相同。 明確地說，如圖8所示，本實施例中在實體框式資訊 的位元組1 6之碼被界定爲鑰資訊區中的准許記錄碼，以 及，儲存十六進位的「〇lh」於其中。 在下述中，爲了簡明起見，將DVD + R標準要求與 DVD + RW標準要求總稱爲「DVD + R/RW標準要求」。根 據DVD + R/RW標準要求，實體框式資訊的位元組16未被 使用（保留）且在位元組1 6的碼係設定爲「〇〇h」。 200822091 在本實施例中’使用符合dvd + r/rw標準要 入區的未使用（保留）部份作爲繪資訊區。在資料 AD IP單元含有位址資訊。 如同上述，本實施例中的光碟1.5是可記錄的 其除了實體框式資訊的位元組16 外，其餘： DVD + R/RW標準要求。 鑰資訊區中的准許記錄碼係儲存於實體框式資 實體框式資訊指明本實施例的光碟1 5中的軌道的 狀，而能夠將由C S S所編碼內容的鑰資訊記錄於其 此，能夠以可再生的狀態，將由CSS所編碼內容記 實施例的光碟1 5上。 在上述實施例中，已說明鑰資訊中的准許記錄 存於實體框式資訊的位元組1 6中的情況。或者， 言，鑰資訊中的准許記錄碼可以被儲存於實體框式 位元組17中。根據DVD + R/RW標準要求，實體框 的位元組1 7是儲存有「碟片應用碼」的區域。在 實施例中，光碟不再與現有的光碟裝置相容。 在上述實施例中，已說明光碟15具有一個記 情形。本發明不限於此實施例。或者，本發明的另 可以配置成具有二或更多個記錄層。 圖9顯示個人電腦（PC)10的組成，其爲本發明 例中的光記錄系統。 如圖9所示，個人電腦1 0包含主控制器92、 置20、硬碟機（HDD) 94、輸入裝置95、顯示裝 求的導 區中的 光碟， 与符合 訊中， 擺動形 上。因 錄於本 碼被儲 舉例而 資訊的 式資訊 此替代 錄層的 5碟15 的實施 光碟裝 -10- 196、 200822091 驅動介面裝置97、及網路介面裝置98。光碟裝置20是本 發明的實施例中的光記錄裝置。 主控制器 92 包含 CPU 92a、ROM 92b、及 RAM 92c。 CPU 92a執行記錄處理（稍後將述及）並根據儲存於控制 ROM92b及RAM92C中的程式，控制整個個人電腦10。 HDD 94包含硬碟94a及用以驅動硬碟94a之驅動裝 置94b。由主控制器92的CPU 92a所解碼的碼中所描述 的不同程式係記錄於硬碟94a上。假使需要時，記錄於硬 碟94a上的程式被載至主控制器92的RAM 92c上。 顯示裝置96設有顯示器（未顯示出），其係由陰極 射線管（CRT)、液晶顯示器（LCD)、電漿顯示面板（PDP)、 等等所製成。顯示裝置96根據來自主控制器92之指令而 顯示不同的資訊。 輸入裝置95包含鍵盤、滑鼠、輸入板、光筆、觸控 面板、等等中的至少一輸入媒體（未顯示出）。輸入裝置 95將由使用者所輸入的不同資訊告知主控制器92。藉由 使用無線系統，可以將來自輸入媒體的資訊輸入至個人電 腦1 0。 或者，顯示裝置96與輸入裝置95可以配置成一體的 顯示/輸入裝置，舉例而言，具有觸控面板的LCD。 驅動介面裝置97在主控制器92與光碟裝置20或 HDD之間提供雙向介面。驅動介面裝置97符合標準介面 ，例如ATAPI(AT附著封包介面）、SCSI(小電腦系統介面 )、及USB(通用串列匯流排）。 -11 - 200822091 網路控制單元98使用公用電話網路來控制雙向通訊 。網路介面裝置9 8用來建立個人電腦1 0與網際網路之間 的連接。 光碟裝置20係配置成根據來自主控制器92的指令而 將資訊記錄於光碟上。 如圖10所示，光碟裝置10設有下述元件：用以旋轉 光碟裝置中的光碟組之主軸馬達22、光拾訊裝置23、用 於在光碟徑向上致動光拾訊裝置23的搜尋馬達2 1、雷射 控制電路24、編碼器25、驅動控制電路26、播放訊號處 理電路28、緩衝RAM 34、緩衝管理器37、介面裝置38 、快閃記憶體39、CPU 40、RAM 41。圖10中的箭頭僅指 示典型訊號或典型資訊的流動，並未顯示光碟裝置20的 元件之間的所有連接關係。 假定光碟裝置20支援光碟15的記錄。光碟拾訊裝置 2 3係配置成將雷射光聚焦於光碟1 5的記錄層上以及接收 來自記錄層的反射雷射光。 光拾訊裝置23包含發射波長對應於光碟1 5的雷射光 之半導體雷射、將半導體雷射發射的雷射光聚焦於光碟1 5 的記錄層上的物鏡、接收記錄層反射回來的雷射光之光偵 測器、及用以致動物鏡的驅動系統（未顯示之聚焦致動器 及追蹤致動器）、等等。光偵測器包含多個光接收元件（或 光接收區）及輸出與光接收元件（或光接收區）收到的雷射光 強度成比例的訊號（光電轉換訊號）給播放訊號處理電路2 8 -12- 200822091 播放訊號處理電路28根據光偵測器的輸出（光電轉換 訊號）而產生伺服訊號（聚焦誤差訊號、追蹤誤差訊號、等 等）、擺動訊號、RF訊號、等等。舉例而言，請參考日本 公開專利申請號1 0-069646。 由播放訊號處理電路2 8所產生的伺服訊號係輸出給 驅動控制電路26、CPU、等等。播放訊號處理電路28從 擺動訊號中取得同步資訊、實體框式資訊、及位址資訊。 所需的同步資訊係輸出給編碼器25及驅動控制電路 26。實體框式資訊及位址資訊係輸出至CPU 40。 播放訊號處理電路2 8對RF訊號執行解碼處理及偵錯 處理。當偵測到錯誤時，播放訊號處理電路2 8在執行錯 誤修正處理之後，經由緩衝管理器3 7，將播放資料儲存於 緩衝RAM 34中。 驅動控制電路26根據從播放訊號處理電路28所接收 到的追蹤錯誤訊號而產生驅動訊號給追蹤致動器，用以校 正追蹤方向上的物鏡的偏差。驅動控制電路2 6根據從播 放訊號處理電路2 8所接收到的聚焦錯誤訊號，產生驅動 訊號給聚焦致動器，用以校正物鏡的聚焦偏差。 對個別致動器所產生的驅動訊號係輸出至光拾訊裝置 23。因而，執行追蹤控制及聚焦控制。 驅動控制電路26根據來自CPU 40的指令，產生用以 驅動搜尋馬達2 1的驅動訊號、以及用以驅動主軸馬達22 的驅動訊號。對個別馬達的驅動訊號係分别輸出給搜尋馬 達21及主軸馬達22。 -13- 200822091 要被記錄於光碟1 5上的資料（記錄資料）、從光碟 1 5再生的資料（播放資料）、等等係暫存於緩衝r a μ 3 4中 。從緩衝RAM 34輸入或輸出的資料係藉由緩衝管理器37 來予以管理。 根據來自CPU的指令，編碼器25經由緩衝管理器37 而從緩衝RAM 3 4讀出記錄資料、執行資料調變、錯該校 正碼的增加、等等，以及產生寫入訊號給光碟15。所產生 的寫入訊號係輸出至雷射控制電路24。 雷射控制電路24控制光拾訊裝置2 3的半導體雷射的 發射功率。舉例而言，在記錄資訊時，根據寫入資訊、記 錄條件、半導體雷射的發光特性、等等，由雷射控制電路 24產生給半導體雷射的驅動訊號。 介面裝置3 8提供經由驅動介面裝置97而與主控制器 92的雙向通訊介面，並符合與驅動介面裝置97的介面標 準相同的介面標準。 在能夠藉由 CPU40來予以解碼之碼中所敘述的各種 程式、包含記錄壓率及記錄策略資訊之記錄條件、半導體 雷射的發光特徵、等等係儲存於快閃記憶體3 9中。 當根據儲存於快閃記憶體3 9中的上述程式來控制整 個光碟裝置20的同時，CPU 40儲存用以控制進入RAM 41及緩衝RAM 34的所需資料。 影像內容的記錄處理 接著，將解釋由個人電腦1 〇所執行之由C S S所編碼 -14- 200822091 之視頻內容（稱爲c S S編碼內容〃）的記錄處理。 假設經由網際網路從CSS編碼內容的提供者的網站下 載CSS編碼內容及其鑰資訊，並將其儲存於硬碟94a中。 假設光碟15係裝設在光碟裝置20中。 (1 )主控制器92的CPU 92a經由輸入裝置95而從 使用者接收對CSS編碼內容的光碟之寫入請求。在接收到 寫入請求時，CPU 92a請求光碟裝置20執行儲存在硬碟 94a中的CSS編碼內容及其鑰資訊的寫入。 (a)光碟裝置20的CPU 40從主控制器92接收CSS 編碼內容的寫入資訊及其鑰資訊。在接收到寫入資訊時， 對應於儲存在快閃記憶體3 9中的圖1 1的流程圖的程式的 啓始位址係設定至程式計數器，以及，CPU 40開始寫入 處理。圖1 1的流程圖相當於由CPU 40所執行的處理演算 法。 (b )在步驟S401中，光碟的實體框式資訊中的位元 組16處的碼被讀出。在將光碟裝設於光碟裝置20及儲存 於RAM 41中時，已經讀出實體框式資訊。 (c)在步驟S403中，判定從實體框式資訊中的位元 組1 6讀出的碼是否等於「〇 1 h」。亦即，判定光碟是否支 援CSS編碼內容的記錄。 在此情況中，設置在光碟裝置20中的光碟爲光碟15 ，以及，從實體框式資訊的位元組1 6讀出的碼等於「〇 ! h 」。因此，在步驟S403的判定結果爲是。控制移至步驟 S405。亦即，判定設置在光碟裝置中的光碟支援CSS編碼 -15- 200822091 內容的記錄。 (d )在步驟S4〇5中，允許對光碟的資料區寫入CSS 編碼內容。因此，經由編碼器25、雷射控制電路24、及 光拾訊裝置23，開始對光碟的資料區寫入CSS編碼內容 〇 (e) 在步驟S4 07中，已經寫入的資料量會與主控制 器92請求寫入的資料量相比較，並判定是否完成對資料 區寫入CSS編碼內容。 當未完成對資料區寫入 CSS編碼內容時，在步驟 S 407的判定結果爲否。在過了預定時間之後，判定完成 對資料區寫入C S S編碼內容。 另一方面，當完成對資料區寫入CSS編碼內容時，在 步驟S4 07的判定結果爲是。控制移至步驟S409。 (f) 在步驟S409，允許對導入區寫入鑰資訊。因此 ，開始經由編碼器2 5、雷射控制電路2 4、及光拾訊裝置 23 ’對光碟的導入區寫入包含鑰資訊之導入區資訊。 (g )在步驟S4 1 1中，CPU 40通知主控制器92正常 地完成CSS編碼內容及鑰資訊的寫入。而且，結束寫入處 理。 (h )當從實體框式資訊的位元組1 6讀出的碼不等於 「0 1 h」時，在步驟s 4 0 3的判定結果爲否。控制移至步驟 S421 〇 (1)在步驟S421中，CPU 40通知主控制器92’ CSS編碼內容及鑰資訊不正常地終止。而且’結束寫入處 -16- 200822091 理。 (2 )當從光碟裝置20收到「正常結束」時’主控制 器92的CPU 92a請求HDD 94抹除儲存在硬碟94a中 的CSS編碼內容及鑰資訊。 (3 )主控制器92的CPU 92a在顯示裝置96的顯示 器上顯示一訊息，表示正常地完成CSS編碼內容的記錄’ 以便將此訊息告知使用者。而且，CPU 92 a請求光碟裝置 20退出光碟。CSS編碼內容的記錄處理結束。 (4)當從光碟裝置20收到「不正常結束」時’主控 制器92的CPU 92a在顯示裝置96的顯示器上顯示代表目 常裝設的光碟應由可記錄CSS編碼內容的另一光碟取代之 訊息，以便將此訊息告知使用者。亦即，禁止在可記錄 CSS編碼內容的光碟以外的任何其它光碟上記錄CSS編碼 內容及其鑰資訊。 如同前述所述般，在本實施例的個人電腦1〇中，光 碟記錄裝置係由光碟裝置20所構成，以及，處理單元係 由CPU 92a及由CPU 92a所執行的程式所構成。 或者，可以使用硬體處理來取代由CPU 92a所執行的 程式所構成的處理單元的一部份或全部。 在本實施例的光碟裝置20中，記錄單元係由編碼器 25、雷射控制電路24、及光拾訊裝置23所構成，以及， 判定單元係由CPU 40及由CPU 40所執行的程式所構成。 或者，可以使用硬體處理來取代由CPU 40所執行的 程式所構成的判定單元的一部份或全部。 -17- 200822091 本發明的判定方法係由上述光碟裝置20所執行的寫 入所構成。 如上所述，根據本實施例的光碟裝置20，在記錄CSS 編碼內容及其鑰資訊於光碟上之前，判定指示可記錄CSS 編碼內容的鑰資訊之鑰資訊區（判別資訊）中的准許記錄 碼是否記錄於光碟上。當鑰資訊區中的准許記錄碼係記錄 於光碟上時，CSS編碼內容及其鑰資訊記錄於光碟上。因 此，能夠將CSS編碼內容及其鑰資訊記錄於本發明的光碟 上。 因此，能夠以可再生狀態，將c S S編碼內容記錄於本 發明的可記錄光碟上。因而，能夠將所下載的CSS編碼內 容與鑰資訊以可再生狀態一起記錄在本發明的光碟上。 在本實施例的個人電腦1 〇中，光碟裝置20係設於其 中，而且，能夠將CSS編碼內容及其鑰資訊記錄於本發明 的光碟上。結果，能夠以可再生狀態，將C S S編碼內容記 錄於本發明的光碟上。 在上述實施例中，已說明光記錄系統係由個人電腦所 構成的情況。或者，光記錄系統可以由DVD記錄器來予 以構成，其可執行與上述CSS編碼內容的記錄處理相同的 處理。 本發明不限於上述實施例，且在不違離本發明的範圍 之下可以改變及修改。本發明根據並主張2006年9月5 日申請的日本專利申請號2006-239953之優先權，其整體 內容於此一倂列入參考。 •18- 200822091 【圖式簡單說明】 配合附圖閱讀下述詳細說明，將可清楚本發明的其它 目的、特點、及優點。 圖1是剖面圖，顯示根據本發明的實施例中的光記錄 媒體之光碟結構。 圖2是用以解釋圖1的光碟中的軌道。 圖3是用以解釋圖1的光碟中的軌道的擺動。 圖4是用以解釋資訊框的成份。 圖5A及圖5B是用以解釋ADIP(先期溝槽中的位址） 的擺動形狀。 圖6A及圖6B是用以解釋sync資訊區的擺動形狀。 圖7是用以解釋ADIP (先期溝槽中的位址）字。 圖8是用以解釋實體框資訊。 圖9是方塊圖，顯示本發明的實施例中光記錄系統的 個人電腦組成。 圖1 0是方塊圖，顯示作爲本發明的實施例中光記錄 裝置的圖9中所示的光碟裝置的組成。 圖11是流程圖，用以解釋圖1 〇的光碟裝置的操作。 【主要元件符號說明】 1 〇 :個人電腦 1 5 :光碟 20 :光碟裝置 2 1 :搜尋馬達 -19- 200822091 2 2 :主軸馬達 23 :光拾訊裝置 24 :雷射控制單元 25 :編碼器 26 :驅動控制電路200822091 IX. Description of the Invention [Technical Field] The present invention relates to an optical recording medium, an optical recording apparatus, an optical recording system, and a determination method. More particularly, the present invention relates to an optical recording medium suitable for recording content encoded by css (content scrambling system), an optical recording apparatus using the optical recording medium as a main recording medium, and light provided with an optical recording apparatus. The recording system and the determination whether the optical recording medium supports the content encoded by the css. [Prior Art] Video content such as a movie is encoded by a so-called encryption system of c S S (content scrambling system). The DVD-ROM (Digital Video CD/ROM) is sold with key information for decrypting the recorded force scrambling code. The playback device set for reproducing the video content is configured to decrypt the video content that is disturbed by the force based on the key information recorded on the DVD-ROM. For example, please refer to Japanese Laid-Open Patent Application No. 1 1 - 1 76090. In this way, the copyright of the image content is protected. The key information is stored in a predetermined area on the inner rail side of the dvd_RO 。. Recordable DVDs currently sold in the marketplace cannot record key information on them. For example, a DVD-system optical recording medium such as a DVD-R (Recordable DVD-) and a DVD-RW (Rewritable DVD-) is provided, so that optical recording is performed in a predetermined area corresponding to the above DVD-ROM. Emboss processing is performed in the area of the media. Providing a DVD + system optical record 200822091 recording medium such as DVD + R (recordable DVD + ) and DVD + RW (rewritable DVD + ), so that the area corresponding to the predetermined area of the DVD-ROM described above is write-protected The area, and any other recording device or recording system cannot perform writing in this write-protected area. For example, please refer to the ECMA-349 standard of the first edition of December 2003 "Data interchange on a 120 mm and 80 mm disc using a +R frame: one capacity: 4.7 and 1.46 G bytes per side"; and The ECMA-337 standard, version 2, December 2003, "Uses a +RW frame for data interchange on 120 mm and 80 mm discs: 4.7 and 1.46 Gbytes per side." In recent years, with the spread of the Internet, downloading video content via the Internet has been regarded as a purchase style of video content. However, even if a recordable DVD is used, the key information cannot be recorded in the predetermined area of the medium. Therefore, the downloaded encoded video content cannot be recorded on the DVD in a reproducible state. SUMMARY OF THE INVENTION According to an aspect of the present invention, an optical recording medium having an improvement over the above problems is provided. According to an aspect of the present invention, there is provided an optical recording medium on which content encoded by CS S can be recorded in a reproducible state. According to an aspect of the present invention, there is provided an optical recording apparatus and an optical recording system adapted to record a content encoded by c S S in a reproducible state on an optical recording medium of the present invention. According to an aspect of the present invention, there is provided a determination method adapted to easily determine whether an optical recording medium supports recording of content encoded by CSS 200822091 in an embodiment of the present invention that solves or reduces one or more of the above problems. Provided is a recordable optical recording medium having a spiral shape or a concentric circular track and a recording area having a management information area and a data area, wherein the optical recording medium group is encoded by the content scrambling system CSS The key information of the content can be recorded in the management information area. By using the above optical recording medium, the key information of the content encoded by the CSS can be recorded in the management information area of the medium. As a result, the content encoded by css can be recorded in a reproducible state. In an embodiment of the present invention which solves or reduces one or more of the above problems, an optical recording apparatus is provided which uses the above-described optical recording medium as a main medium, and the optical recording apparatus includes: a determination unit that constitutes a determination determination information Recorded on the optical recording medium, the discrimination information indicates that the key information of the content encoded by the content scrambling system CSS is recordable; and the recording unit, the group composition is determined when the determining unit determines that the discrimination information is recorded on the optical recording medium The content encoded by the CSS and the key information are recorded in the data area and the management information area of the optical recording medium, respectively. By using the above-described recording means, it is possible for the determination unit to determine whether or not the discrimination information is recorded on the optical recording medium, and the discrimination information indicates that the key information of the content encoded by c S S is recordable. When the discrimination information is recorded on the optical recording medium, the recording unit records the data encoded by the CSS in the data area of the optical recording medium and the key information in the management information area of the optical recording medium. Therefore, the content encoded by the CSS and its key information can be recorded on the optical recording medium. As a result, the contents of the 200822091 code edited by c S S can be recorded on the optical recording medium in a reproducible state. In an embodiment of the present invention that solves or reduces one or more of the above problems, a determination method is provided to determine whether the optical recording medium supports recording of content encoded by the content scrambling system c SS, and the determining method includes: determining whether the discrimination information is Recorded on the optical recording medium, the discrimination information indicates that the key information of the content encoded by the content scrambling system css is recordable; and the content to be encoded by the CSS when the determination step determines that the discrimination information is recorded on the optical recording medium and The key information is recorded in the data area and the management information area of the optical recording medium, respectively. By using the above-described determination method, it is determined whether or not the discrimination information is recorded on the optical recording medium. When the discrimination information is recorded on the optical recording medium, it is judged that the optical recording medium supports recording of the content encoded by c S S . Therefore, it can be easily judged whether or not the optical recording medium supports recording of the content encoded by c S S . [Embodiment] An embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows the structure of a disc 15 of an optical recording medium in an embodiment of the present invention. As shown in Fig. 1, the groove G is a spiral guide groove formed in the recording layer of the optical disk 15. In general, when viewing a disc from the incident direction of the laser light, the convex portion is referred to as a groove G, and the depressed portion is referred to as a land surface L. In the present embodiment, the groove G constitutes a track ' for recording data' and the data is recorded on the groove G. As a typical example shown in Fig. 2, each track is divided into a lead-in area (introduction zone), a data zone (data tape), and a lead-out zone (export tape) in the direction from the inner rail side to the outer rail 200822091 side. District. The lead-in area is a management information area in which management information is stored. The data area is the area where user data is stored. The export area is information that is stored to point to the end of the data. In Fig. 2, for the sake of simplicity, it is assumed that the track is formed in a straight line, the left side of the drawing is the inner track side of the optical disk 15, and the right side of the drawing is the outer track side of the optical disk 15. As an example shown in Fig. 3, the track is formed in a wobble shape with respect to the center of the track. In this case, the track pitch is equal to 0.74 microns. The wobble of the track is determined by the ADIP (address in the previous trench) cell and the carrier. The AD IP unit contains different kinds of information. The carrier is used to generate a reference clock signal. In the following embodiments, a base unit composed of an ADIP unit and a carrier area is referred to as an information frame. As shown in the example of Fig. 4, assuming that a cycle of the carrier (referred to as a wobble cycle) is represented by a wobble, the size of an information frame is represented by 93 wobbles (swing number 〇·92). In the embodiment of Fig. 4, the wobble number 〇-7 constitutes an ADIP unit, and the wobble number 8-92 constitutes a carrier area. The ADIP unit contains the area of the wobble number 0-3 (synchronization information area) and the area of the wobble number 4-7 (ADIP information area). Each of the above information areas is subjected to phase modulation (or phase shift keying PSK). For example, in the ADIP information area, four wobbles represent one bit of data. As shown in FIG. 5A, when the bit data is "〇", the two front end wobbles are formed to have the same phase as the phase of the carrier region, and the two rear end wobbles are formed to have phases opposite to the phase of the carrier region. . -8- 200822091 On the other hand, as shown in FIG. 5B, when the bit data is "1", the two front end swings are formed to have phases opposite to the phase of the carrier area, and the two rear end swings are formed to have The phases of the carrier regions are of the same phase. As shown in FIG. 6A, when the ADIP information area of the information frame below indicates the start bit of the data, the synchronization information area indicates the word synchronization signal, that is, all four swing systems of the synchronization information area are formed to have the carrier area. The phase of the opposite phase. As shown in FIG. 6B, when the bit data is included in the ADIP information area, the synchronization information area indicates the bit synchronization signal, that is, a front end swing of the synchronization information area is formed to have a phase opposite to the phase of the carrier area. And the remaining three oscillating lines are formed to have the same phase as the phase of the carrier region. As shown in Figure 7, an ADIP word is represented by 52 information boxes. The ADIP unit in the lead-in area contains entity box information. In this embodiment, the physical box information is changed except for the byte 16 of the physical box information, and the DVD+R standard requirements (see ECMA-349 standard) or the DVD + RW standard requirements (see standard). ECMA-3 3 7) is the same as disclosed. Specifically, as shown in FIG. 8, the code of the byte 16 in the entity frame information in this embodiment is defined as the permission record code in the key information area, and the "〇lh" storing the hexadecimal position. In it. In the following, for the sake of brevity, the DVD + R standard requirements and the DVD + RW standard requirements are collectively referred to as "DVD + R/RW Standard Requirements". According to the DVD + R/RW standard requirements, the byte 16 of the entity box information is not used (reserved) and the code system in the byte 16 is set to "〇〇h". 200822091 In the present embodiment, the unused (reserved) portion of the input area conforming to the dvd + r/rw standard is used as the drawing information area. In the data AD IP unit contains address information. As described above, the optical disc 1.5 in this embodiment is recordable except for the byte 16 of the physical frame information, and the rest: DVD + R/RW standard requirements. The permission record code in the key information area is stored in the physical box type entity box type information to indicate the shape of the track in the optical disk 15 of the embodiment, and the key information of the content encoded by the CSS can be recorded therein. In the regenerable state, the content encoded by the CSS is recorded on the optical disc of the embodiment. In the above embodiment, the case where the permission record in the key information is stored in the byte 16 of the entity box information has been described. Alternatively, the permission record code in the key information may be stored in the physical box byte 17. According to the DVD + R/RW standard requirements, the byte 1 7 of the entity frame is the area in which the "disc application code" is stored. In an embodiment, the optical disc is no longer compatible with existing optical disc devices. In the above embodiment, it has been explained that the optical disk 15 has a case. The invention is not limited to this embodiment. Alternatively, the present invention may be further configured to have two or more recording layers. Fig. 9 shows the composition of a personal computer (PC) 10 which is an optical recording system in the present invention. As shown in Fig. 9, the personal computer 10 includes a main controller 92, a 20, a hard disk drive (HDD) 94, an input device 95, a disc in the display area of the display device, and a swaying shape in accordance with the signal. Information on the information recorded in this code is stored in this alternative recording layer. The implementation of the 5th Disc 15 is installed on the optical disc -10- 196, 200822091 drive interface device 97, and network interface device 98. The optical disk device 20 is an optical recording device in an embodiment of the present invention. The main controller 92 includes a CPU 92a, a ROM 92b, and a RAM 92c. The CPU 92a performs recording processing (to be described later) and controls the entire personal computer 10 in accordance with programs stored in the control ROM 92b and the RAM 92C. The HDD 94 includes a hard disk 94a and a driving device 94b for driving the hard disk 94a. The different programs described in the code decoded by the CPU 92a of the main controller 92 are recorded on the hard disk 94a. The program recorded on the hard disk 94a is loaded onto the RAM 92c of the main controller 92, if necessary. The display device 96 is provided with a display (not shown) which is made of a cathode ray tube (CRT), a liquid crystal display (LCD), a plasma display panel (PDP), or the like. Display device 96 displays different information in accordance with instructions from host controller 92. The input device 95 includes at least one input medium (not shown) of a keyboard, a mouse, an input pad, a light pen, a touch panel, and the like. The input device 95 notifies the main controller 92 of the different information input by the user. Information from the input media can be input to the personal computer 10 by using a wireless system. Alternatively, the display device 96 and the input device 95 may be configured as an integrated display/input device, for example, an LCD having a touch panel. The drive interface device 97 provides a two-way interface between the main controller 92 and the optical disk device 20 or HDD. The driver interface device 97 conforms to standard interfaces such as ATAPI (AT Attached Packet Interface), SCSI (Small Computer System Interface), and USB (Universal Serial Bus). -11 - 200822091 Network Control Unit 98 uses a public telephone network to control two-way communication. The network interface device 98 is used to establish a connection between the personal computer 10 and the Internet. The optical disc device 20 is configured to record information on a disc in accordance with an instruction from the main controller 92. As shown in FIG. 10, the optical disc device 10 is provided with the following components: a spindle motor 22 for rotating a disc group in the optical disc device, an optical pickup device 23, and a search for actuating the optical pickup device 23 in the radial direction of the optical disc. Motor 2 1, laser control circuit 24, encoder 25, drive control circuit 26, playback signal processing circuit 28, buffer RAM 34, buffer manager 37, interface device 38, flash memory 39, CPU 40, RAM 41. The arrows in Fig. 10 only indicate the flow of typical signals or typical information, and do not show all the connections between the components of the optical disc device 20. It is assumed that the optical disc device 20 supports the recording of the optical disc 15. The optical disk pickup device 2 3 is configured to focus the laser light onto the recording layer of the optical disk 15 and receive the reflected laser light from the recording layer. The optical pickup device 23 includes a semiconductor laser that emits laser light having a wavelength corresponding to the optical disk 15, an objective lens that focuses the laser light emitted from the semiconductor laser on the recording layer of the optical disk 15, and a laser light that is reflected back from the receiving recording layer. A photodetector, and a drive system for causing an animal mirror (a focus actuator and a tracking actuator not shown), and the like. The photodetector includes a plurality of light receiving elements (or light receiving regions) and outputs signals (photoelectric conversion signals) proportional to the intensity of the laser light received by the light receiving elements (or light receiving regions) to the playback signal processing circuit 2 8 -12- 200822091 The playback signal processing circuit 28 generates a servo signal (focus error signal, tracking error signal, etc.), a wobble signal, an RF signal, and the like according to the output (photoelectric conversion signal) of the photodetector. For example, please refer to Japanese Laid-Open Patent Application No. 10-069646. The servo signal generated by the playback signal processing circuit 28 is output to the drive control circuit 26, the CPU, and the like. The playback signal processing circuit 28 obtains synchronization information, physical frame information, and address information from the wobble signal. The required synchronization information is output to the encoder 25 and the drive control circuit 26. The entity box information and the address information are output to the CPU 40. The playback signal processing circuit 28 performs decoding processing and error detection processing on the RF signal. When an error is detected, the playback signal processing circuit 28 stores the playback material in the buffer RAM 34 via the buffer manager 3 7 after performing the error correction processing. The drive control circuit 26 generates a drive signal to the tracking actuator based on the tracking error signal received from the playback signal processing circuit 28 for correcting the deviation of the objective lens in the tracking direction. The drive control circuit 26 generates a drive signal to the focus actuator for correcting the focus deviation of the objective lens based on the focus error signal received from the broadcast signal processing circuit 28. The drive signals generated for the individual actuators are output to the optical pickup device 23. Thus, tracking control and focus control are performed. The drive control circuit 26 generates a drive signal for driving the search motor 21 and a drive signal for driving the spindle motor 22 in accordance with an instruction from the CPU 40. The drive signals for the individual motors are output to the search motor 21 and the spindle motor 22, respectively. -13- 200822091 The data (record data) to be recorded on the CD 15 , the data (play data) reproduced from the CD 15 , etc. are temporarily stored in the buffer r a μ 3 4 . The data input or output from the buffer RAM 34 is managed by the buffer manager 37. In accordance with an instruction from the CPU, the encoder 25 reads out the recorded material from the buffer RAM 34 via the buffer manager 37, performs data modulation, increases the correction code, and the like, and generates a write signal to the optical disk 15. The generated write signal is output to the laser control circuit 24. The laser control circuit 24 controls the transmission power of the semiconductor laser of the optical pickup device 23. For example, when information is recorded, a drive signal to the semiconductor laser is generated by the laser control circuit 24 based on the write information, the recording conditions, the luminescence characteristics of the semiconductor laser, and the like. The interface device 38 provides a bi-directional communication interface with the main controller 92 via the drive interface device 97 and conforms to the same interface standard as the interface standard of the drive interface device 97. The various programs described in the code that can be decoded by the CPU 40, the recording conditions including the recording pressure ratio and the recording strategy information, the light-emitting characteristics of the semiconductor laser, and the like are stored in the flash memory 39. While controlling the entire optical disk device 20 in accordance with the above-described program stored in the flash memory 39, the CPU 40 stores necessary data for controlling access to the RAM 41 and the buffer RAM 34. Recording Processing of Video Content Next, the recording processing of the video content (referred to as c S S encoded content 编码) encoded by C S S and executed by the PC 1 将 will be explained. It is assumed that the CSS encoded content and its key information are downloaded from the provider's website of the CSS encoded content via the Internet and stored in the hard disk 94a. It is assumed that the optical disk 15 is mounted in the optical disk device 20. (1) The CPU 92a of the main controller 92 receives a write request for the optical disc of the CSS encoded content from the user via the input device 95. Upon receiving the write request, the CPU 92a requests the optical disk device 20 to execute the writing of the CSS encoded content and its key information stored in the hard disk 94a. (a) The CPU 40 of the optical disc device 20 receives the write information of the CSS encoded content and its key information from the main controller 92. Upon receiving the write information, the start address of the program corresponding to the flowchart of Fig. 11 stored in the flash memory 39 is set to the program counter, and the CPU 40 starts the write processing. The flowchart of Fig. 11 corresponds to the processing algorithm executed by the CPU 40. (b) In step S401, the code at the byte 16 in the physical frame information of the optical disc is read. When the optical disk is mounted on the optical disk device 20 and stored in the RAM 41, the physical frame information has been read. (c) In step S403, it is determined whether or not the code read from the byte 16 in the entity frame information is equal to "〇 1 h". That is, it is determined whether the optical disc supports the recording of the CSS encoded content. In this case, the optical disc set in the optical disc device 20 is the optical disc 15, and the code read from the byte 16 of the physical frame information is equal to "〇 ! h ". Therefore, the result of the determination in step S403 is YES. Control is passed to step S405. That is, it is determined that the optical disc set in the optical disc device supports the recording of the contents of the CSS code -15-200822091. (d) In step S4〇5, the CSS encoded content is allowed to be written to the data area of the optical disc. Therefore, the CSS encoded content is written to the data area of the optical disc via the encoder 25, the laser control circuit 24, and the optical pickup device 23 (e). In step S4 07, the amount of data that has been written is related to the main The controller 92 requests the amount of data to be written to be compared, and determines whether or not the writing of the CSS encoded content to the data area is completed. When the CSS encoded content is not written to the data area, the result of the determination in step S407 is NO. After the predetermined time has elapsed, it is determined that the writing of the C S S encoded content is completed for the data area. On the other hand, when the writing of the CSS encoded content to the material area is completed, the decision result in the step S4 07 is YES. Control is passed to step S409. (f) In step S409, the key information is allowed to be written to the lead-in area. Therefore, the lead-in area information including the key information is written to the lead-in area of the optical disc via the encoder 25, the laser control circuit 24, and the optical pickup device 23'. (g) In step S41, the CPU 40 notifies the main controller 92 to normally complete the writing of the CSS encoded content and the key information. Also, the writing process is ended. (h) When the code read from the byte 16 of the entity frame information is not equal to "0 1 h", the decision result in the step s 4 0 3 is NO. Control is passed to step S421. (1) In step S421, the CPU 40 notifies the main controller 92' that the CSS encoded content and the key information are abnormally terminated. And 'end the writing place -16- 200822091. (2) When "normal completion" is received from the optical disk device 20, the CPU 92a of the main controller 92 requests the HDD 94 to erase the CSS encoded content and the key information stored in the hard disk 94a. (3) The CPU 92a of the main controller 92 displays a message on the display of the display device 96 indicating that the recording of the CSS encoded content is normally completed' to inform the user of the message. Moreover, the CPU 92a requests the optical disk device 20 to eject the optical disk. The recording processing of the CSS encoded content ends. (4) When the "abnormal end" is received from the optical disc device 20, the CPU 92a of the main controller 92 displays on the display of the display device 96 another disc on which the disc which is normally installed should be encoded by the recordable CSS. Replace the message to inform the user of this message. That is, it is prohibited to record the CSS encoded content and its key information on any other disc than the disc on which the CSS encoded content can be recorded. As described above, in the personal computer 1 of the present embodiment, the optical disk recording apparatus is constituted by the optical disk device 20, and the processing unit is constituted by the CPU 92a and the program executed by the CPU 92a. Alternatively, hardware processing may be used instead of a part or all of the processing unit constituted by the program executed by the CPU 92a. In the optical disc device 20 of the present embodiment, the recording unit is constituted by the encoder 25, the laser control circuit 24, and the optical pickup device 23, and the determination unit is constituted by the CPU 40 and a program executed by the CPU 40. Composition. Alternatively, hardware processing may be used instead of a part or all of the determination unit constituted by the program executed by the CPU 40. -17- 200822091 The determination method of the present invention is constituted by writing performed by the above-described optical disk device 20. As described above, according to the optical disc device 20 of the present embodiment, before recording the CSS encoded content and its key information on the optical disc, the discriminating recording code in the key information area (discrimination information) indicating the key information of the recordable CSS encoded content is determined. Whether it is recorded on the disc. When the permitted recording code in the key information area is recorded on the optical disc, the CSS encoded content and its key information are recorded on the optical disc. Therefore, the CSS encoded content and its key information can be recorded on the optical disc of the present invention. Therefore, the c S S encoded content can be recorded on the recordable optical disc of the present invention in a reproducible state. Thus, the downloaded CSS encoded content and the key information can be recorded on the optical disc of the present invention together in a reproducible state. In the personal computer 1 of the present embodiment, the optical disc device 20 is incorporated therein, and the CSS encoded content and its key information can be recorded on the optical disc of the present invention. As a result, the C S S encoded content can be recorded on the optical disc of the present invention in a reproducible state. In the above embodiment, the case where the optical recording system is constituted by a personal computer has been described. Alternatively, the optical recording system may be constituted by a DVD recorder which can perform the same processing as the recording processing of the above CSS encoded content. The present invention is not limited to the above embodiments, and can be changed and modified without departing from the scope of the invention. The present invention is based on and claims the priority of Japanese Patent Application No. 2006-239953, filed on Sep. BRIEF DESCRIPTION OF THE DRAWINGS Other objects, features, and advantages of the present invention will become apparent from the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a structure of a optical disc of an optical recording medium in accordance with an embodiment of the present invention. Fig. 2 is a view for explaining a track in the optical disk of Fig. 1. Fig. 3 is a view for explaining the swing of the track in the optical disk of Fig. 1. Figure 4 is a diagram for explaining the components of the information frame. 5A and 5B are diagrams for explaining the wobble shape of the ADIP (address in the preceding groove). 6A and 6B are diagrams for explaining the wobble shape of the sync information area. Figure 7 is a diagram for explaining the word ADIP (address in the prior groove). Figure 8 is a diagram for explaining the physical frame information. Figure 9 is a block diagram showing the composition of a personal computer of the optical recording system in the embodiment of the present invention. Figure 10 is a block diagram showing the composition of the optical disk device shown in Figure 9 as an optical recording apparatus in the embodiment of the present invention. Figure 11 is a flow chart for explaining the operation of the optical disk apparatus of Figure 1 . [Description of main component symbols] 1 〇: PC 1 5 : CD 20 : Disc device 2 1 : Search motor -19- 200822091 2 2 : Spindle motor 23 : Optical pickup device 24 : Laser control unit 25 : Encoder 26 : Drive Control Circuit
2 8 :播放訊號處理電路 34 :緩衝RAM 3 7 :緩衝管理器 3 8 :介面裝置 3 9 :快閃記憶體2 8 : Playback signal processing circuit 34 : Buffer RAM 3 7 : Buffer manager 3 8 : Interface device 3 9 : Flash memory
40 ： CPU40 : CPU
41 ： RAM 9 2 :主控制器 94 :硬碟機 94a :硬碟 94b :驅動裝置 95 :輸入裝置 96 :顯示裝置 97:驅動介面裝置 9 8 :網路介面裝置41 : RAM 9 2 : Main controller 94 : Hard disk drive 94a : Hard disk 94b : Drive unit 95 : Input device 96 : Display device 97 : Drive interface device 9 8 : Network interface device