201214422 六、發明說明： 【發明所屬之技術領域】 本發明關於光資訊媒體、光資訊記錄再生裝置及光資 訊記錄再生方法。 【先前技術】 習知光碟例如藍光光碟（Blue-ray Disc(BD))等，爲求 儲存於使用者資料區域之資料之管理及其著作權之保護， 於光碟內周設置BCA(Burst Cutting Area(燒錄區））。BCA 相關之技術揭示於例如專利文獻1、專利文獻2等。 [習知技術文獻] [專利文獻] 專利文獻1 :特開2000-1 49423號公報 專利文獻2:特開2001-043533號公報 容 內 明 發 (發明所欲解決之課題） BCA資料之寫入，習知技術係於使用者資料區域之形 成後，藉由BCA燒錄器（BCA Cutter)等進行。但是，此種 方法，於光碟製造工程中須對應於BCA形成用而設置個 別之工程，就光碟之生產工時、甚至製造成本觀點而言， 會造成光碟生產者之大負擔。 (用以解決課題的手段） -5- 201214422 上述問題係藉由申請專利範圍記載之發明予以解決。 【實施方式】 (光資訊媒體） 說明本實施形態使用之光資訊媒體。又，爲說明之簡 單，本實施形態中以BD之系統爲前提。圖1表示習知 BC A構造之物理特性及其信號波形圖。（a)表示物理構造 ，在基礎部分之壓刻部藉由對應於資料區域之調變方法而 形成隨機資料。於此，於後續工程使用BCA燒錄機（BCA Cutter)等形成燒錄部（cutting area)。如此藉由降低反射位 準而構成資料圖案之“1”，和其他之壓刻部之“0”之間可藉 由反射率差異進行判別。（b)表示實際再生之波形。壓刻部 係藉由資料圖案被調變，檢測出高頻成份。另外，燒錄部 (cutting)，係對資料圖案實施燒斷，反射光量大幅降低， 可以降低再生信號強度直至大致接近0位準。（c)表示通過 再生用LPF後之信號波形。資料圖案爲準用使用者資料區 域之高頻成份信號，作爲信號中心位準被檢測出。結果， 壓刻（emboss)部係較I8H(原波形之最高位準）爲低，切斷 部可以於接近〇位準被檢測出。 圖2表示本實施形態使用之光資訊媒體之BCA構造 之物理特性及其信號波形圖。（a)之物理構造係和習知 BCA不同，構成資料圖案“0”之部分爲鏡部、亦即，不存 在凹坑（pit)等之光繞射構造，成爲最高反射光量之構造。 構成資料圖案“ 1 ”之壓刻部，係和習知BCA之壓刻部同樣 201214422 之物理構造。 (b)之再生波形其差異雖明確，構成資料圖案“1”之壓 刻部，係和習知BCA之資料圖案“0”之壓刻部同樣之反射 率差異，和習知BCA之信號位準不同之波形。資料圖案 “〇”之鏡部亦同樣，信號位準係由資料圖案之高頻信號之 中心位準大幅偏移至I8H。 因此，本實施形態中，將使用於BCA之凹坑深度予 以重新規定，設爲可以和習知B C A同樣被檢測出。具體 言之爲，將凹坑深度設計成爲雷射波長之大略1/4，而最 容易檢測出反射光量之變化。另外，此種設計之推挽信 號之檢測困難，但於BCA之再生時無須進行定軌伺服 (tracking servo)，因而可以實現。 以後表示凹坑形狀之評估結果。特別是針對反射光量 之變化、亦即，最能確保信號調變度之條件予以檢討。條 件係針對凹坑長度、凹坑寬度進行比較檢討。 首先，凹坑長度，係就資料調變觀點，以2T長度之 連續圖案、8T長度之連續圖案進行比較。又，1T爲通道 時脈（channel clock)。 圖3表示2T長度之連續圖案之結果。（a)表示凹坑寬 度爲定軌間距（tracking pitch)之一半、亦即，0.16μηι時之 反射光量。G/L分別表示正軌（groove, on track)狀態及偏 軌（land, off track)狀態之結果。（b)表示凹坑寬度設爲反射 光量成爲極小之光點尺寸之大略一半、亦即，〇·21μιη之 結果。信號位準之1，係以鏡位準爲基準，以相對光量比 201214422 予以表示。由彼等結果可知，2T長度之連續圖案時，凹 坑寬度設爲0.21 μιη時，更能降低平均反射光量。 圖4表示8Τ長度之連續圖案之模擬結果。（a)、（b)係 分別和圖3同樣。8T長度之連續圖案時，於凹坑中心部 分（圖中之Length = 0)不論正軌/偏軌，以鏡部爲基準而成 爲0.3以下。另外，非凹坑（land)部係成爲相當於鏡部之 0.9左右。由該結果可知，使用凹坑圖案於BCA形成時， 信號強度會於凹坑部與非凹坑部大幅變化，通過BCA再 生用之LPF後，被進行全部之平均化，而非常收斂於0.5 附近。 圖5〜7表示凹坑構造之BCA之例。圖5表示2T連 續圖案，圖6表示8T連續圖案，圖7表示將8T連續圖案 予以擴展之溝構造圖案。由圖3、4之條件可知，更能確 保BCA之調變度的凹坑圖案，可以說是長的凹坑圖案之 中央部呈連續存在之情況。亦即，確保和習知BCA同樣 之信號位準，而且無須追加後工程之凹坑形成形式之BCA ，並非如圖5、6所示具有非凹坑部之圖案，而是如圖7 所示藉由設爲長的凹坑圖案（溝構造），而可以確保BC A信 號調變度。 另外，本實施形態之說明中，爲說明之方便而以2T 、8T之連續圖案予以比較，但不限定於此。例如溝構造 之實現困難時，只需確保凹坑部之長度、儘可能縮短非凹 坑部之長度即可，例如8T凹坑與2T非凹坑之組合之圖案 ，亦可以較容易確保BCA調變度。 201214422 (光碟之形狀） 說明本實施形態使用之再生專用光碟之形狀。圖8表 示1層ROM(再生專用）光碟。圖9表示2層ROM(再生專 用）光碟》圖8之1層ROM光碟，係具有寫入標籤之側的 標籤面，及再生用之光束射入側之記錄面。由記錄面側起 依序由保護記錄面的覆蓋層、信號記錄用的記錄層、以及 其下之基材層構成。圖9之2層ROM光碟，係具有寫入 標籤之側的標籤面，及再生用之光束射入側之記錄面。由 記錄面側起依序由保護記錄面的覆蓋層、信號記錄用的記 錄層（L 1 )、隔開與另一記錄層之間的間隔層、另一信號記 錄用的記錄層（L0)、以及其下之基材層構成。 圖10爲1層ROM光碟及2層ROM光碟之記錄層之 構造圖。圖1 〇係以光碟斷面之左側爲內周，右側爲外周 予以表示之模式圖。圖10(a)L0光碟構造，係表示1層 ROM光碟及2層ROM光碟之記錄層L0之光碟構造。圖 10(b)Ll光碟構造，係表示2層ROM光碟之記錄層L1之 光碟構造。 於圖10(a)L0光碟構造，1001爲BCA，記錄著光碟固 有之資訊等。1002爲內徑區0(lnner Zone 0)，記錄著光碟 相關之屬性資訊或控制資訊等，亦稱爲導入區（Lead-in)， 1003爲資料區0(D at a Zone 0)，記錄著AV資料等之使用 者資料。1 004爲外徑區0(Outer Zone 0)，記錄著控制資 訊等。內徑區0(1002)，係由保護區1(1005)、PIC(1006)、 201214422 保護區 2(1 007) 、 INF002(1008)、保留區（1 009)、 INFOOI(IOIO)構成。保護區1 (1 005)係用於隔開BCA(lOOl)與 PIC(1 006)之區域。PIC(1006)係記錄著：光碟形態相關之 資訊、或光碟尺寸相關之資訊、或光碟版本相關之資訊、 或光碟構造相關之資訊、或通道位元長度相關之資訊、或 BC A之有無相關之資訊、或適用之最大傳送速度相關之資訊 等。保護區2(1 007)係用於隔開PIC(1 006)與INFO02 ( 1 008) 之區域。於INF002(1008)記錄著控制資訊。保留區（1〇〇9) 爲預備區域。於INFOOI(IOIO)記錄著控制資訊。外徑區 0(1 004)係由 INFO3/4(1011)與保護區 3(1012)構成。於 INFO3/4(1011)記錄著控制資訊。保護區3(1012)，係將 INFO3/4(10 1 1)與更外周部分予以隔離。圖10(a)L0光碟構 造之內周起朝向外周之箭頭，係表示1層ROM光碟及2 層ROM光碟之記錄層L0，係以由內周朝外周進行讀取的 方式被記錄。 於圖10(b)Ll光碟構造，1014爲內徑區l(Inner Zone 1)，記錄著光碟相關之屬性資訊或控制資訊等，亦稱爲導 出區（Lead-out)。1015 爲資料區 0(Data Zone 0)，記錄著 AV資料等使用者資料。1016爲外徑區l(Outer Zone 1)， 記錄著控制資訊等。內徑區1(1014)，係由保護區1(1017) 、PIC(1018)、保護區 2(1019)、INF002(1020)、保留區 (1021)、INF001(1022)構成。保護區1(1017)係用於隔開 更內周側與PIC(1018)之區域。PIC(1018)係記錄著：光碟 形態相關之資訊、或光碟尺寸相關之資訊、或光碟版本相 -10- 201214422 關之資訊、或光碟構造相關之資訊、或通道位元長度相關 之資訊、或BCA之有無相關之資訊、或適用之最大傳送 速度相關之資訊等。保護區2(1019)係用於隔開PIC(1018) 與INF002(1020)之區域。於INF002(1020)記錄著控制資 訊。保留區（1021)爲預備區域。於INF001 (1 022)記錄著控 制資訊。外徑區 1(1016)係由INFO3/4( 1 023 )與保護區 3 (1 024)構成。於INFO3/4( 1 023)記錄著控制資訊。保護區 3(1 024)，係將INFO3/4(1 023)與更外周部分予以隔離。圖 10(b)Ll光碟構造之外周起朝向內周之箭頭，係表示2層 ROM光碟之記錄層L1，係以由外周朝內周進行讀取的方 式被記錄。 (資料之編碼處理） 說明使用者資料之記錄處理。如圖1 1所示，使用者 資料被分割爲2048位元組單位，分別附加4位元組之錯 誤檢測碼而構成2052位元組之資料框。之後，對各資料 框，如圖1 2所示進行亂碼處理，構成亂碼資料框。之後 ，如圖1 2所示將3 2個亂碼資料框設爲1群組。之後，依 序進行再度配置，如圖1 3所示構成2 1 6行3 04列之資料 區塊。之後，如圖14所示’對資料區塊之各列’藉由 (248、216、32)之 RS 碼（Reed-Solomon Code)進行編碼， 附加32位元組之奇偶（parity)而構成新的248行3 04列之 LDC(Long Distant Code)區塊。針對LDC區塊進行以下之 第1交錯及第2交錯之處理。第1交錯’係如圖15a所示 -11 - 201214422 ，使偶數號列之資料與接續其之奇數號列之資料互相交叉 插入而進行再配置而構成496行152列之區塊。第2交錯 ，係如圖15b所示，針對再配置之496行152列之區塊， 依據由上起2行單位，最初之2行不進行移位，次2行向 左移位3位元組，次2行向左移位6位元組，次2行向左 移位9位元組，以增加各3位元組之移位量而進行再配置 。實施第1交錯、第2交錯後之資料係構成LDC群集 (cluster) 0 另外，附加於該資料區塊之位址係如下產生。 如圖16所示，資料區塊被分割爲16之位址單元，分 別被分配9位元組之位址資訊。9位元組之內容，係由4 位元組之位址，1位元組之旗標資訊，及被附加於4位元 組之位址及旗標資訊的奇偶構成。該位址係進行交錯處理 ，而形成6行24列之矩陣。同時，使用者控制資料1 8位 元組、32單元分係被配置成爲24行24列之矩陣。 上述6行24列之矩陣與24行24列之矩陣被結合， 而形成如圖17所示30行24列之存取區塊。針對存取區 塊之各列，藉由（62、33、32)之RS碼進行編碼，附加32 位兀組之奇偶而形成如圖18所不62彳了 24列之BlS(Burst Indicating Subcode)區塊。對 BIS區塊之資料進行再配置 而構成如圖19所示496行3列之BIS群集。 將上述LDC群集分割爲各38列，於其間各插入1列 之BIS群集之資料而構成如圖20所示ECC群組。 針對ECC群組之各行1 5 5位元組之資料，於先頭附 -12- 201214422 加20位元之圖框同步信號，155位元組之資料，被分割爲 先頭25位元、以後各45位元，於其間插入DC控制位元 ，構成如圖21所示記錄圖框。D C控制位元，係以調變後 之DSV成爲接近0的方式被控制。 對記錄圖框之資料之調變係依據如圖22所示表格進 行17調變。圖框同步信號，係如圖23所示使用30位元 之同步碼而被附加。於圖23，#爲同步碼之前之調變後之 資料以0000或00終端時成爲1，其他時成爲0» (BCA) 圖24表示由光碟2401之上看到的圖10之BCA之配 置之圖。在光碟24 01之半徑21.3 mm至22 _ 0mm爲止之範 圍，以同心圓狀形成（BCA)2402。另外，2403爲中心孔。 於該BCA，儲存著光碟ID等之光碟固有之資訊、或光碟 之準用之規格資訊等。相對於1周約47 50通道位元，此 種資訊佔有4648通道位元。 圖25表示記錄於BCA2 402之資料之調變方法。本發 明調變方法中’ 2位元之資料係被調變爲7位元資料。調 變後之7位元資料之構成爲，前半3位元爲同步部，後半 4位元爲資料部。同步部係僅由“〇 1 〇”構成。資料部，係將 4位元之中之任一位元設爲“ 1 ”，將其以外之位元設爲“〇” 。於圖25，原資料爲“00”時，資料部被調變爲“1 000”。同 樣，原資料“01”、“10”、“11”係分別調變爲資料部“0100” 、“0010”、“0001，，° -13- 201214422 圖26表示同步部及資料部被記錄於BCA2402之狀態 之模式。此情況下，表示“01 01 〇〇〇”之資料。位元“1”之情 況下’被形成低反射率部。位元“0”之情況下不形成該低 反射率部，光碟反射率之變化大致爲〇。 圖27表示記錄於BCA2402之資料構造圖。於圖27, 各行由5位元組構成。各行之先頭1位元組爲同步位元組 ’後方之4位元組設爲資料。 第1行設爲preamble，全設爲〇〇h。 第1同步位元組僅使用於第1行，藉由檢測出其而可 以檢測出BCA碼之開始位置。或者，可以配合第1同步 位元組以後之00h資料予以檢測。第2行至第3 3行爲止 係以4行單位實施區域劃分。第2行至第5行爲止，係被 配置使用者資料10，0至10，15之16位元組之資料。接 著’第6行至第9行爲止，係被配置和第2行至第5行爲 止之使用者資料10，0至10，15對應的16位元組之奇偶 C0’ 0至C0，15。藉由該第2行至第5行爲止之使用者資 料與第6行至第9行爲止的奇偶，而構成1個ECC區塊 〇 同樣，第1 0行至第1 3行爲止係被配置使用者資料II ’ 〇至II，15，第14行至第17行爲止係被配置對應之奇 偶Cl’〇至C1，15。第18行至第21行爲止係被配置使 用者資料12，0至12，15，第22行至第25行爲止係被配 置對應之奇偶C2，0至C2，15。第26行至第29行爲止 係被配置使用者資料13，0至13，15，第30行至第33行 -14- 201214422 爲止係被配置對應之奇偶C3，0至C3，15° 第2行至第5行之同步位元組被設爲SBOO。第6行 至第9行之同步位元組被設爲SB01。第10行至第13行 之同步位元組被設爲SB02。第14行至第17行之同步位 元組被設爲SB03。第18行至第21行之同步位元組被設 爲SB10。第22行至第25行之同步位元組被設爲SB11° 第26行至第29行之同步位元組被設爲SB 12。第30行至 第33行之同步位元組被設爲SB13。於第34行未配置資 料，僅配置同步位元組之SB32。圖27之資料’係依據圖 25之調變方式，表示調變前之資料。其資料量爲166位元 組（=5位元組χ4行χ8組+5位元組+1位元組）。該資訊被調 變之結果，成爲4648通道位元（=166x8x7/2)。 圖28表示圖27之同步信號之具體資料列。另外，圖 28之例係以調變後之通道位元列予以表示。28通道位元 之同步位元組，係由14通道位元之同步本體，及14通道 位元之同步ID構成。14通道位元之同步本體，係由7通 道位元之同步本體1，及7通道位元之同步本體2構成。 14通道位元之同步ID’係由7通道.位元之同步ID1，及7 通道位元之同步ID2構成。 同步本體’係依據先前記載之本來之調變法則而成爲 圖案。亦即’如圖2 5所示依據本調變法則時，其同步部 被設爲“010”乃應當者。但是’同步本體2之同步部係設 爲和“010”不同的“001”。因此，可由資料來辨識同步位元 組。 -15- 201214422 各同步位元組之同步本體1均被設爲“0 1 0 000 1 ”，同 步本體2被設爲“001 01 00”。相對於此，同步ID係對應 於各同步位元組被設爲不同之値，如此則，可進行同步位 元組之辨識。如上述說明，各同步位元組互異，因此可以 辨識。 圖29表示BCA碼之ECC區塊之構成圖。ECC係使用 RS(248、216、33)之R S碼》此乃和圖14之E C C區塊同 樣之RS碼。但是，BCA碼之ECC區塊係如圖29所示， 先頭之200位元組被設爲固定資料，可使用例如FFh。接 續該固定資料之16位元組之資料，實質上被設爲BC A之 使用者資料。使用200位元組之固定資料及1 6位元組之 BCA資料，來計算36位元組之奇偶。 本實施形態之2 1 6位元組之資料之中，先頭200位元 組爲固定資料未被記錄於光碟。同樣，32位元組之奇偶之 中，僅先頭16位元組之奇偶C0〜C 15被記錄於光碟，其 餘之1 6位元組之奇偶未被記錄。解碼時，200位元組之固 定資料直接使用同一値。另外，未被記錄之16位元組之 奇偶係被解碼爲消失旗標。亦即，3 2位元組之奇偶之中， 後半之1 6位元組爲位置用之奇偶，作爲消失者被處理。 即使奇偶之1/2消失，因爲位置已知，因此可解碼爲原來 之奇偶。 如上述說明，藉由使用和記錄於使用者資料區域之使 用者資料之ECC相同的RS(24 8、216、33)，於BCA亦可 實現極爲強力之錯誤訂正能力。另外，可構成同一硬體， -16- 201214422 可減輕電路規模，減低成本。另外，僅須記錄32位 ’和記錄248位元組全部比較，可以增大資料容量。 圖30表示BCA之資料區塊之構成。本實施形態 4個ECC區塊被記錄於BCA2 4 02。各ECC區塊之16 組之資料，係由先頭1位元組之內容碼，及接續之1 元組之內容資料構成。BCA之內容碼，先頭之位元7 元2之6位元係被設爲應用ID，最後之位元1、位元 2位元被設爲順序編號。 光資訊記錄再生裝置，係僅可對具有被確定之 ID的光碟進行資料記錄或再生。例如可對具有特定 用ID的光碟，爲保護其內容資料而記錄必要之內容 密/解密用之金鑰資訊。 順序編號係由2位元構成，被設爲“〇〇”、“01，，、 、“1 1”之任一。各ECC區塊之內容資料爲14位元組 時，各個順序編號被設爲“00”。 以下表示內容資料之儲存方法。例如4個ECC 之中，作爲先頭2個ECC區塊之各內容資料，而被 同一之內容資料時（此情況下爲同一應用ID之同一內 料之雙重寫入），個別之ECC區塊之順序編號被設爲 。亦即，記錄同一內容資料時，2個ECC區塊之順序 被設爲同一編號。 接著，於其餘2個ECC區塊，將和最初之ECC 之應用ID不同的24位元組之內容資料予以儲存時， 編號之順序編號被設爲“00”，第2編號之ECC區塊之 元組 中， 位元 5位 〜位 〇之 應用 之應 之加 “10” 以下 區塊 儲存 容資 編號 區塊 第1 順序 -17- 201214422 編號被設爲“01”。亦即，跨越複數個ECC區塊時係儲存序 列編號（serial number)。 如上述說明，於各ECC區塊被記錄著應用ID及順序 編號，因此可由彼等來辨識所要資料儲存於哪一ECC區 塊，或者多重寫入》 另外，圖30之資料區塊之BCA內容碼及內容資料， 係對應於圖27之先頭ECC區塊之10，0〜10，15» (光碟之記錄再生裝置） 使用圖31說明適用於本發明之形狀、資料之編碼處 理、針對上述說明之BCA之光碟進行再生的記錄再生裝 置。圖31表示記錄再生裝置之區塊圖。於圖31，3100表 示如圖8、9、10所示再生專用光碟，或者槪略具有共通 形狀之可記錄之光碟。3101表示使光碟3100旋轉之光碟 馬達。3 102表示對光碟3100照射雷射光、檢測反射光獲 得再生信號的光拾取器。另外，3102係於記錄時確實將整 形後之波形之雷射光照射至光碟3 1 0 0而進行記錄。3 1 0 3 爲類比前端，用於進行光拾取器3102檢測出之信號之波 形整形或伺服器信號之產生。3 1 04爲解調處理電路，係依 據被波形整形之信號之2値化或資料之編碼處理所說明之 1-7調變'進行解調處理等。3105爲DRAM(Dynamic Randum Access Memory) ’用於暫時記憶被實施解調處理後之資料 、訂正處理中、輸出入資料、調變處理前之資料等。3106爲 ECC(Error Correction Circuit)，再生處理時係針對 -18- 201214422 DRAM3 105暫時記憶之被實施解調處理後之資料進行錯誤 訂正處理’記錄處理時係針對DRAM3 105暫時記憶之輸入 資料進行錯誤訂正碼之附加。3107爲介面電路，用於使 DRAM3 105暫時記憶之資料由輸出端子3114予以輸出，使來 自輸入端子3113之輸入資料暫時記憶於DRAM3 105，或使 DRAM3 105記億之BCA關連資訊之由輸出端子31 15之輸 出等之介面處理。可使3113與3115共通化。另外，介由雙 向化可使3113、3114、3115共通化。3108爲調變電路， 記錄處理時係針對由DRAM3105讀出之資料，依據資料之 編碼處理所說明之1-7調變，進行調變處理，將調變資料 供給至 LDD( Laser Diode Driver)3109。LDD3109，記錄處 理時，係針對調變資料，將適合記錄之記錄波形供給至光 拾取器3102，光拾取器3102係依據記錄波形發光而進行 記錄。3110爲BCA解碼器，於BCA之再生時，係如 [BCA]之說明，針對依據低反射率之有無被記錄的BCA之 資料區域進行解碼處理。 又，本發明不限定於上述實施形態，亦包含各種變形 例。例如上述實施形態係爲使本發明容易理解而詳細說明 者，但未必一定需要具備全部構成。另外，可將某一實施 形態之構成之一部分替換爲其他實施形態之構成，或於某 一實施形態之構成追加其他實施形態之構成.。另外’針對 各實施形態之構成之一部分’可實施其他構成之追加、刪 除、替換。 又，上述各構成中，彼等之一部分或全部可由硬體構 -19- 201214422 成，或藉由處理器執行程式之處理而實現》另外，控制線 或資訊線係爲說明必要而表示者，製品上未必一定需要表 示全部之控制線或資訊線。實際上可考慮爲大致將全部構 成予以相互連接。 (發明效果） 依據本發明，可藉由容易之方法實現BCA形成，適 用於和習知BCA同等之檢測方法。 【圖式簡單說明】 圖1表示習知BCA構造及其信號波形圖^ 11 2表示本實施形態使用之BCA構造及其信號波形 圖。 圖3表示2T長度之連續圖案之模擬結果圖。 圖4表示8T長度之連續圖案之模擬結果圖。 圖5表示凹坑構造之BCA之圖案。 圖6表示凹坑構造之BCA之另一圖案。 圖7表示凹坑構造之BCA之再另一圖案。 圖8表示本實施形態使用之1層ROM光碟之構造圖 〇 圖9表示本實施形態使用之2層ROM光碟之構造圖 〇 圖1 0爲本實施形態使用之ROM光碟之記錄層之構造 圖。 -20- 201214422 圖11表示本實施形態使用之光碟之資料框（data frame)構造圖。 圖12表示本實施形態使用之光碟之亂碼資料框 (s c r a m b 1 e d <3 a t a f r a m e )構造圖。 圖13表示本實施形態使用之光碟之216行304列之 資料區塊構成圖。 圖14表示本實施形態使用之光碟之LDC區塊構成圖 〇 圖15a表示相對於LDC區塊之第1交錯之構成圖. 圖15b表示相對於LDC區塊之第2交錯之構成圖。 圖1 6表示本實施形態使用之光碟之位址資訊構造圖 〇 圖17表示本實施形態使用之光碟之存取區塊構造圖 〇 圖18表示本實施形態使用之光碟之BIS區塊之構造 圖。 圖19表示本實施形態使用之光碟之BIS群集之構造 圖。 圖2〇表示本實施形態使用之光碟之ECC群集之構造 圖。 圖21表示本實施形態使用之光碟之記錄圖框之構造 圖。 圖22表示本實施形態使用之光碟之丨—7調變之轉換 圖。 -21 - 201214422 圖23表示同步圖框之同步信號圖案表。 圖24表示本實施形態使用之光碟之BCA之位置之構 造圖。 圖25表示本實施形態使用之光碟之BCA之調變法則 之轉換表。 圖26表示本實施形態使用之光碟之BCA之記錄形狀 圖。 圖27表示本實施形態使用之光碟之BCA之資料構造 圖。 圖28表示BCA之同步信號之圖案表。 圖29表示BCA碼之ECC區塊之構成圖。 圖30表示BCA之資料區塊之構成圖。 圖31表示本實施形態使用之光資訊記錄再生裝置之 區塊圖。 【主要元件符號說明】 3100 :光碟 3 1 〇 1 :光碟馬達 3102 :光拾取器 -22-201214422 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to an optical information medium, an optical information recording and reproducing apparatus, and an optical information recording and reproducing method. [Prior Art] A conventional optical disc such as a Blu-ray Disc (BD) or the like is provided for the management of the data stored in the user data area and the protection of the copyright. The BCA (Burst Cutting Area) is set in the inner circumference of the optical disc. Burning area)). The technology related to BCA is disclosed, for example, in Patent Document 1, Patent Document 2, and the like. [PRIOR ART DOCUMENT] Patent Document 1: JP-A-2000-1, 49,423, JP-A-2001-043533, JP-A No. 2001-043533, the disclosure of the BCA data The conventional technology is performed by a BCA Cutter or the like after the formation of the user data area. However, such a method requires a separate project for the formation of the BCA in the optical disc manufacturing process, which causes a burden on the optical disc producer in terms of the production time of the optical disc and even the manufacturing cost. (Means for Solving the Problem) -5- 201214422 The above problem is solved by the invention described in the patent application. [Embodiment] (Light Information Media) The optical information medium used in the present embodiment will be described. Further, for simplicity of explanation, in the present embodiment, the system of BD is premised. Figure 1 shows the physical characteristics of a conventional BC A structure and its signal waveform. (a) indicates a physical structure in which random portions are formed by the modulation method corresponding to the data region in the embossed portion of the base portion. Here, a cutting area is formed in a subsequent process using a BCA burner (BCA Cutter) or the like. Thus, the "1" constituting the material pattern by lowering the reflection level can be distinguished from the "0" of the other embossed portions by the difference in reflectance. (b) shows the waveform of actual regeneration. The embossing portion is modulated by the data pattern to detect high frequency components. In addition, the burning portion is configured to blow the data pattern, and the amount of reflected light is greatly reduced, and the intensity of the reproduced signal can be reduced until it is approximately close to the zero level. (c) shows the signal waveform after passing through the LPF for reproduction. The data pattern is the high frequency component signal of the user data area, which is detected as the signal center level. As a result, the embossing portion is lower than I8H (the highest level of the original waveform), and the cutting portion can be detected near the 〇 level. Fig. 2 is a view showing the physical characteristics and signal waveforms of the BCA structure of the optical information medium used in the embodiment. The physical structure of (a) is different from the conventional BCA, and the portion constituting the material pattern "0" is a mirror portion, that is, a light diffraction structure in which no pit or the like exists, and the structure is the highest reflected light amount. The embossing portion constituting the data pattern "1" is the same as the physical structure of the conventional embossing portion of BCA 201214422. (b) The difference in the reproduced waveform is clear, and the embossed portion constituting the data pattern "1" is the same reflectance difference as the embossed portion of the conventional BCA data pattern "0", and the signal position of the conventional BCA Quasi-different waveforms. The data pattern of the “〇” mirror is also the same, the signal level is greatly shifted to the I8H from the center of the high frequency signal of the data pattern. Therefore, in the present embodiment, the pit depth used in the BCA is redefined, and it can be detected in the same manner as the conventional B C A . Specifically, the pit depth is designed to be approximately 1/4 of the wavelength of the laser, and it is most easy to detect the change in the amount of reflected light. In addition, the push-pull signal of such a design is difficult to detect, but it is not necessary to perform a tracking servo during the regeneration of the BCA. The evaluation result of the pit shape is shown later. In particular, the conditions for the amount of reflected light, that is, the conditions for ensuring the most suitable signal modulation, are reviewed. The conditions are compared for the length of the pit and the width of the pit. First, the pit length is compared with a continuous pattern of 2T length and a continuous pattern of 8T length in terms of data modulation. Also, 1T is the channel clock. Figure 3 shows the results of a continuous pattern of 2T lengths. (a) indicates that the pit width is one half of the tracking pitch, that is, the amount of reflected light at 0.16 μm. G/L indicates the result of the track, on track state and the land, off track state, respectively. (b) shows that the pit width is a result of a half of the spot size at which the amount of reflected light becomes extremely small, that is, 〇·21 μιη. The signal level is based on the mirror level and is expressed as the relative light amount ratio 201214422. From the results, it can be seen that in the case of a continuous pattern of 2T length, when the pit width is set to 0.21 μm, the average amount of reflected light can be further reduced. Figure 4 shows the simulation results for a continuous pattern of 8 inches in length. (a) and (b) are the same as in Fig. 3. In the case of a continuous pattern of 8T length, the center portion of the pit (Length = 0 in the figure) is 0.3 or less based on the mirror portion, regardless of the track or off-track. Further, the non-pit portion corresponds to about 0.9 of the mirror portion. From this result, it is understood that when the pit pattern is formed in the BCA, the signal intensity greatly changes in the pit portion and the non-pit portion, and after passing through the LPF for BCA regeneration, all of the averaging is performed, and the convergence is very close to 0.5. . 5 to 7 show an example of a BCA of a pit structure. Fig. 5 shows a 2T continuous pattern, Fig. 6 shows an 8T continuous pattern, and Fig. 7 shows a groove structure pattern in which an 8T continuous pattern is expanded. As can be seen from the conditions of Figs. 3 and 4, the pit pattern which more ensures the modulation degree of BCA can be said to be continuous in the central portion of the long pit pattern. That is, to ensure the same signal level as the conventional BCA, and it is not necessary to add the BCA of the post-forming pit form, instead of having the pattern of the non-pit portion as shown in FIG. 5 and 6, as shown in FIG. The BC A signal modulation can be ensured by setting a long pit pattern (groove structure). Further, in the description of the present embodiment, for the sake of convenience of description, the patterns are compared in a continuous pattern of 2T and 8T, but the present invention is not limited thereto. For example, when the implementation of the trench structure is difficult, it is only necessary to ensure the length of the pit portion and shorten the length of the non-pit portion as much as possible. For example, the pattern of the combination of the 8T pit and the 2T non-pit is also easier to ensure the BCA adjustment. Change. 201214422 (Shape of Optical Disc) The shape of the dedicated disc for reproduction used in the present embodiment will be described. Fig. 8 shows a 1-layer ROM (reproduction-only) disc. Fig. 9 shows a two-layer ROM (Reproduction-Specific Disc). The one-layer ROM disc of Fig. 8 has a label side on the side on which the label is written, and a recording surface on the side on which the light beam is incident on the reproduction. The cover layer for protecting the recording surface, the recording layer for signal recording, and the underlying substrate layer are sequentially formed from the recording surface side. The two-layer ROM of Fig. 9 has a label side on the side on which the label is written, and a recording surface on the side on which the beam for reproduction is incident. The cover layer for protecting the recording surface, the recording layer for signal recording (L 1 ), the spacer layer spaced apart from the other recording layer, and the recording layer for another signal recording (L0) from the recording surface side And the underlying substrate layer. Fig. 10 is a view showing the construction of a recording layer of a 1-layer ROM disc and a 2-layer ROM disc. Fig. 1 is a schematic diagram showing the left side of the disc section as the inner circumference and the right side as the outer circumference. Fig. 10 (a) shows the structure of the L0 disc, which is a disc structure of a recording layer L0 of a 1-layer ROM disc and a 2-layer ROM disc. Fig. 10(b) shows the structure of the L1 disc, which is a disc structure of the recording layer L1 of the 2-layer ROM disc. In Fig. 10(a) L0 disc structure, 1001 is BCA, and the information of the disc is recorded. 1002 is the inner zone 0 (lnner Zone 0), which records the attribute information or control information related to the optical disc, which is also called the lead-in area, and 1003 is the data area 0 (D at a Zone 0), which records User data such as AV data. 1 004 is the outer area 0 (Outer Zone 0), and the control information is recorded. The inner diameter zone 0 (1002) is composed of the protection zone 1 (1005), the PIC (1006), the 201214422 protection zone 2 (1 007), the INF002 (1008), the reserved zone (1 009), and the INFOOI (IOIO). Protected Area 1 (1 005) is used to separate the areas of BCA (1001) and PIC (1 006). PIC (1006) records: information related to the form of the disc, or information related to the size of the disc, or information related to the disc version, information related to the disc construction, information related to the length of the channel bit, or the presence or absence of BC A. Information, or information about the maximum transfer speed applicable. Protected Area 2 (1 007) is used to separate the areas of PIC (1 006) and INFO02 (1 008). Control information is recorded in INF002 (1008). The reserved area (1〇〇9) is the preparation area. Control information is recorded at INEOI (IOIO). The outer diameter zone 0 (1 004) consists of INFO3/4 (1011) and protected zone 3 (1012). Control information is recorded in INFO 3/4 (1011). Protected Area 3 (1012) isolates INFO3/4 (10 1 1) from the outer perimeter. In Fig. 10 (a), the arrow toward the outer circumference from the inner circumference of the L0 disc structure indicates that the recording layer L0 of the one-layer ROM disc and the two-layer ROM disc is recorded so as to be read from the inner circumference toward the outer circumference. In Fig. 10(b) Ll disc structure, 1014 is an inner zone 1 (Inner Zone 1), which records the attribute information or control information related to the optical disc, which is also called a lead-out. 1015 is the data area 0 (Data Zone 0), and the user data such as AV data is recorded. 1016 is the outer diameter zone 1 (Outer Zone 1), and the control information is recorded. The inner diameter zone 1 (1014) is composed of a protection zone 1 (1017), a PIC (1018), a protection zone 2 (1019), an INF002 (1020), a reserved zone (1021), and an INF001 (1022). Protected area 1 (1017) is used to separate the area of the inner circumference side from the PIC (1018). PIC (1018) records: information related to the form of the disc, or information related to the size of the disc, or information about the disc version, or information related to the construction of the disc, or the length of the channel bit, or BCA has relevant information, or information about the maximum transmission speed applicable. Protected Zone 2 (1019) is used to separate the areas of PIC (1018) and INF002 (1020). Control information is recorded in INF002 (1020). The reserved area (1021) is a preliminary area. Control information is recorded in INF001 (1 022). The outer diameter zone 1 (1016) consists of INFO3/4 (1 023) and protected zone 3 (1 024). Control information is recorded in INFO3/4 (1 023). Protected Area 3 (1 024) isolates INFO3/4 (1 023) from the outer perimeter. Fig. 10(b) The arrow toward the inner circumference from the outer circumference of the L1 optical disc structure indicates that the recording layer L1 of the two-layer ROM disc is recorded in such a manner that it is read from the outer circumference toward the inner circumference. (Coding processing of data) Explains the recording processing of user data. As shown in Fig. 11, the user data is divided into 2048 byte units, and the error detection code of 4 bytes is added to form a data frame of 2052 bytes. Thereafter, each data frame is garbled as shown in Fig. 12 to form a garbled data frame. Thereafter, as shown in Fig. 12, 32 garbled data frames are set to 1 group. After that, the data is reconfigured in order, and the data blocks of the 2 1 6 rows and 3 04 columns are formed as shown in FIG. Then, as shown in FIG. 14, 'the columns of the data block' are encoded by the RS code (Reed-Solomon Code) of (248, 216, 32), and the parity of the 32-bit tuple is added to form a new one. The 248 line 3 04 column of the LDC (Long Distant Code) block. The following first interleaving and second interleaving processing are performed for the LDC block. The first interlace is as shown in Fig. 15a -11 - 201214422, and the data of the even-numbered columns and the data of the odd-numbered columns are inserted and re-arranged to form blocks of 496 rows and 152 columns. The second interleaving is as shown in Fig. 15b. For the 496 rows and 152 columns of the reconfiguration, according to the two rows from the top, the first two rows are not shifted, and the second two rows are shifted to the left by three bits. The group, the second row is shifted to the left by 6 bytes, and the second row is shifted to the left by 9 bytes, and the shift amount of each of the three bytes is increased to be reconfigured. The data after the first interleaving and the second interleaving is configured to constitute an LDC cluster. In addition, the address attached to the data block is generated as follows. As shown in Figure 16, the data block is divided into 16 address units, which are assigned address information of 9 bytes. The content of the 9-bit tuple is composed of the address of the 4-bit tuple, the flag information of the 1-bit tuple, and the parity of the address and flag information attached to the 4-bit tuple. The address is interleaved to form a matrix of 6 rows and 24 columns. At the same time, the user control data 1 byte and 32 unit are configured as a matrix of 24 rows and 24 columns. The matrix of the above 6 rows and 24 columns is combined with the matrix of 24 rows and 24 columns to form access blocks of 30 rows and 24 columns as shown in FIG. For each column of the access block, the RS code of (62, 33, 32) is used for encoding, and the parity of the 32-bit group is added to form a BlS Indicating Subcode of 24 columns as shown in FIG. 18 Block. The BIS block data is reconfigured to form a BIS cluster of 496 rows and 3 columns as shown in FIG. The LDC cluster is divided into 38 columns, and data of one column of BIS clusters is inserted therebetween to form an ECC group as shown in FIG. For the information of the 1 5 5 octets of each line of the ECC group, in the first -12-201214422 plus 20-bit frame synchronization signal, the 155-bit data is divided into the first 25 bits and the next 45 The bit is inserted between the DC control bits to form a record frame as shown in FIG. The D C control bit is controlled in such a manner that the modulated DSV becomes close to zero. The modulation of the data of the record frame is mutated according to the table shown in Fig. 22. The frame sync signal is appended as shown in Fig. 23 using a 30-bit sync code. In Fig. 23, the data after the modulation code before # is the 0000 or 00 terminal becomes 1 and the other becomes 0» (BCA). Fig. 24 shows the configuration of the BCA of Fig. 10 as seen from above the optical disk 2401. Figure. A range of 21.3 mm to 22 _ 0 mm of the radius of the optical disk 24 01 is formed concentrically (BCA) 2402. In addition, 2403 is a center hole. In the BCA, information inherent to the optical disc such as the disc ID or the specification information of the optical disc is stored. This information occupies 4648 channel bits relative to approximately 47 50 channel bits per week. Fig. 25 shows a modulation method of the data recorded in BCA2 402. In the modulation method of the present invention, the data of '2 bits is converted into 7-bit data. The composition of the 7-bit data after the modulation is that the first half of the three bits are the synchronization part, and the second half of the data is the data part. The synchronization system consists of only "〇 1 〇". In the data department, any one of the four bits is set to "1", and the other bits are set to "〇". In Figure 25, when the original data is "00", the data department is changed to "1 000". Similarly, the original materials "01", "10", and "11" are respectively converted into data sections "0100", "0010", "0001,, ° -13- 201214422. Figure 26 shows that the synchronization section and the data section are recorded in The mode of the state of the BCA2402. In this case, the data of "01 01 〇〇〇" is indicated. In the case of the bit "1", the low reflectance portion is formed. In the case of the bit "0", the low reflection is not formed. In the rate section, the change in the reflectance of the optical disc is roughly 〇. Fig. 27 shows the data structure diagram recorded in BCA2402. In Fig. 27, each row is composed of 5 bytes. The first 1-bit of each line is the sync byte 'rear The 4-byte is set as the data. The first line is set to preamble, and all are set to 〇〇h. The first sync byte is used only in the first line, and the start position of the BCA code can be detected by detecting it. Alternatively, it can be detected in conjunction with the 00h data of the first sync byte. The second row to the third act are implemented in four rows of units. The second row to the fifth act are configured with user data. 10,0 to 10,15 of the 16-bit data. Then the '6th line to the 9th line, The configuration and the second row to the fifth behavior of the user data 10, 0 to 10, 15 corresponding to the 16-bit tuple C0' 0 to C0, 15. By the second row to the fifth behavior The data of the user and the parity of the sixth line to the ninth line constitute an ECC block. Similarly, the 10th line to the 1st line are configured as user data II '〇 to II, 15, 14th. The line until the 17th line is configured to correspond to the parity Cl' 〇 to C1, 15. The 18th line to the 21st line is configured to user data 12, 0 to 12, 15, line 22 to 25 It is configured to correspond to the parity C2, 0 to C2, 15. The 26th to 29th lines are configured with user data 13, 0 to 13, 15, and 30th to 33rd to 14th - 201214422. Configure the corresponding parity C3, 0 to C3, 15°. The sync byte of the 2nd to 5th row is set to SBOO. The sync byte of the 6th to 9th rows is set to SB01. Line 10 to The sync byte of the 13th line is set to SB02. The sync byte of the 14th line to the 17th line is set to SB03. The sync byte of the 18th line to the 21st line is set to SB10. Sync byte to line 25 The sync byte set to SB11° line 26 to line 29 is set to SB 12. The sync byte of the 30th line to the 33rd line is set to SB13. No data is configured on line 34, only configuration SB32 of the sync byte. The data of Fig. 27 is based on the modulation method of Fig. 25, indicating the data before the modulation. The data amount is 166 bytes (=5 bytes, 4 lines, 8 groups, +5 bits) Group +1 byte). The information is modulated and becomes 4648 channel bits (=166x8x7/2). Fig. 28 shows a specific data column of the synchronization signal of Fig. 27. In addition, the example of Fig. 28 is represented by a channel bit column after modulation. The synchronization byte of the 28-channel bit is composed of a synchronous body of 14 channels and a synchronous ID of 14 channels. The synchronous body of the 14-channel bit is composed of a synchronous body 1 of 7-channel bits and a synchronous body 2 of 7-channel bits. The 14-bit bit sync ID' is composed of 7 channels. The bit sync ID1 and the 7 channel bit sync ID2. The synchrotron body is a pattern based on the original modulation law previously described. That is, as shown in Fig. 25, according to the modulation law, the synchronization portion is set to "010". However, the synchronizing portion of the synchronizing body 2 is set to "001" which is different from "010". Therefore, the sync byte can be identified by the data. -15- 201214422 Synchronous body 1 of each sync byte is set to "0 1 0 000 1", and sync body 2 is set to "001 01 00". On the other hand, the synchronization ID is set to be different for each synchronization bit group, and thus, the synchronization bit group can be identified. As explained above, each sync bit group is different and therefore can be identified. Fig. 29 is a view showing the configuration of an ECC block of a BCA code. The ECC system uses the RS code of RS (248, 216, 33). This is the same RS code as the E C C block of Fig. 14. However, the ECC block of the BCA code is as shown in Fig. 29, and the first 200 bytes are set as fixed data, and for example, FFh can be used. The 16-bit data of the fixed data is essentially set as the user data of BC A. The parity of the 36-bit tuple is calculated using the fixed data of 200 bytes and the BCA data of 16-bit tuple. Among the data of the 2 1 6-bit tuple of this embodiment, the first 200-bit tuples are fixed data and are not recorded on the optical disc. Similarly, among the parity of the 32-bit tuple, only the parity C0 to C15 of the first 16-bit tuple are recorded on the optical disc, and the parity of the remaining 16-bit tuple is not recorded. When decoding, the fixed data of 200 bytes directly uses the same data. In addition, the parity of the unrecorded 16-bit tuple is decoded as a vanishing flag. That is, among the parity of the 32-bit tuple, the first half of the 16-bit tuple is the parity used for the position, and is handled as a disappearer. Even if 1/2 of the parity disappears, since the position is known, it can be decoded to the original parity. As described above, by using the same RS (24, 216, 33) as the ECC of the user data recorded in the user data area, the BCA can also achieve extremely strong error correction capability. In addition, it can form the same hardware, -16-201214422 can reduce the circuit scale and reduce the cost. In addition, it is only necessary to record all of the 32-bit and 248-byte comparisons to increase the data capacity. Figure 30 shows the structure of the data block of the BCA. In this embodiment, four ECC blocks are recorded in BCA2 42. The data of 16 groups of each ECC block is composed of the content code of the first 1-byte and the content of the subsequent 1-tuple. The content code of the BCA, the first bit of the 7-bit 2, 6-bit is set as the application ID, and the last bit 1, the bit 2 bits are set to the sequence number. The optical information recording and reproducing apparatus can perform data recording or reproduction only on a disc having a determined ID. For example, it is possible to record the necessary key information for decryption/decryption for the disc having the specific ID to protect the content of the disc. The sequence number is composed of 2 bits and is set to any of "〇〇", "01,,,, and "1 1". When the content data of each ECC block is 14-bit, each sequence number is set. It is "00". The following describes the storage method of the content data. For example, among the four ECCs, as the content data of the first two ECC blocks, and the same content data (in this case, the same application ID) In the double write of the material, the sequence number of the individual ECC blocks is set. That is, when the same content data is recorded, the order of the two ECC blocks is set to the same number. Then, in the remaining two ECC blocks When storing the contents of the 24-bit tuple different from the application ID of the original ECC, the serial number of the number is set to "00", and the number of the ECC block of the second number is 5 bits. The application of the address should be added to the “10” block storage capacity number block first order -17- 201214422 The number is set to “01”. That is, the serial number is stored when spanning multiple ECC blocks (serial) Number). As explained above, recorded in each ECC block The application ID and the sequence number are used, so that they can identify which ECC block the desired data is stored in, or multiple writes. In addition, the BCA content code and content data of the data block of FIG. 30 correspond to the head of FIG. 10, 0 to 10, 15» of the ECC block (recording and reproducing apparatus for optical discs) A recording and reproducing apparatus for reproducing the shape and data of the present invention and reproducing the optical disc of the BCA described above will be described with reference to FIG. 31 denotes a block diagram of the recording and reproducing apparatus. In Fig. 31, 3100 denotes a reproduction-dedicated optical disc as shown in Figs. 8, 9, and 10, or a recordable optical disc having a common shape. 3101 denotes an optical disc motor for rotating the optical disc 3100. 3102 denotes an optical pickup that irradiates the laser light to the optical disk 3100 and detects the reflected light to obtain a reproduction signal. Further, the 3102 is configured to record the laser light of the shaped waveform to the optical disk 3 1 0 0 at the time of recording. 1 0 3 is an analog front end for waveform shaping of a signal detected by the optical pickup 3102 or generation of a servo signal. 3 1 04 is a demodulation processing circuit, which is shaped by a waveform. The signal is demodulated or the data is encoded as described in the 1-7 modulation. The demodulation process is performed. 3105 is DRAM (Dynamic Randum Access Memory) 'for temporarily memorizing the data after the demodulation process is performed, and the correction processing is performed. Medium, output data, data before modulation processing, etc. 3106 is ECC (Error Correction Circuit), and the reproduction processing is performed on the -18-201214422 DRAM3 105 temporarily memorized data subjected to demodulation processing for error correction processing' The recording processing is performed by adding an error correction code to the input data temporarily memorized by the DRAM 3 105. 3107 is an interface circuit for outputting the data temporarily stored by the DRAM 3 105 from the output terminal 3114, temporarily storing the input data from the input terminal 3113 in the DRAM 3 105, or causing the DRAM 3 105 to record the BCA related information from the output terminal 31. 15 output and other interface processing. 3113 and 3115 can be made common. In addition, 3113, 3114, and 3115 can be made common by bidirectionalization. 3108 is a modulation circuit, and the recording processing is performed on the data read by the DRAM 3105, and the modulation processing is performed according to the 1-7 modulation described in the encoding processing of the data, and the modulation data is supplied to the LDD (Laser Diode Driver). 3109. In the case of the recording processing, the LDD 3109 supplies a recording waveform suitable for recording to the optical pickup 3102 for the modulation data, and the optical pickup 3102 records the light according to the recording waveform. The 3110 is a BCA decoder. During the reproduction of the BCA, as described in [BCA], the data area of the BCA recorded according to the presence or absence of the low reflectance is decoded. Further, the present invention is not limited to the above embodiment, and includes various modifications. For example, the above embodiments are described in detail to make the present invention easy to understand, but it is not always necessary to have all of the configurations. Further, a part of the configuration of one embodiment may be replaced with a configuration of another embodiment, or a configuration of another embodiment may be added to the configuration of one embodiment. Further, addition, deletion, and replacement of other configurations may be performed for a part of the configuration of each embodiment. Further, in each of the above configurations, some or all of them may be implemented by a hardware configuration -19-201214422, or may be implemented by a processor executing a program. In addition, a control line or an information line is indicated for explanation. It is not necessary to indicate all control lines or information lines on the product. In fact, it is conceivable to roughly connect all the components to each other. (Effect of the Invention) According to the present invention, BCA formation can be realized by an easy method, and it is applied to a detection method equivalent to the conventional BCA. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a conventional BCA structure and its signal waveform diagram. Fig. 1 2 shows a BCA structure used in the present embodiment and a signal waveform diagram thereof. Fig. 3 is a view showing a simulation result of a continuous pattern of 2T length. Fig. 4 is a view showing a simulation result of a continuous pattern of 8T length. Figure 5 shows the pattern of the BCA of the pit structure. Figure 6 shows another pattern of the BCA of the pit configuration. Fig. 7 shows still another pattern of the BCA of the pit structure. Fig. 8 is a view showing the structure of a two-layer ROM disc used in the embodiment. Fig. 9 is a view showing the structure of a two-layer ROM disc used in the embodiment. Fig. 10 is a structural view showing a recording layer of a ROM disc used in the embodiment. -20- 201214422 Fig. 11 is a view showing the structure of a data frame of the optical disc used in the embodiment. Fig. 12 is a view showing the structure of a garbled data frame (s c r a m b 1 e d < 3 a t a f r a m e ) of the optical disk used in the embodiment. Fig. 13 is a view showing the structure of a data block of 216 rows and 304 columns of the optical disk used in the embodiment. Fig. 14 is a view showing the configuration of an LDC block of an optical disk used in the present embodiment. Fig. 15a is a view showing a configuration of a first interleave with respect to an LDC block. Fig. 15b is a view showing a configuration of a second interleave with respect to an LDC block. Fig. 16 is a view showing the structure of the address of the optical disk used in the embodiment. Fig. 17 is a view showing the structure of the access block of the optical disk used in the embodiment. Fig. 18 is a view showing the structure of the BIS block of the optical disk used in the embodiment. . Fig. 19 is a view showing the construction of a BIS cluster of optical discs used in the embodiment. Fig. 2A is a structural view showing an ECC cluster of the optical disc used in the embodiment. Fig. 21 is a view showing the construction of a recording frame of an optical disk used in the embodiment. Fig. 22 is a view showing a conversion diagram of the 调-7 modulation of the optical disk used in the embodiment. -21 - 201214422 Figure 23 shows the synchronization signal pattern table of the sync frame. Fig. 24 is a view showing the construction of the position of the BCA of the optical disc used in the embodiment. Fig. 25 is a view showing a conversion table of the modulation law of the BCA of the optical disc used in the embodiment. Fig. 26 is a view showing the recording shape of the BCA of the optical disc used in the embodiment. Fig. 27 is a view showing the data structure of the BCA of the optical disc used in the embodiment. Figure 28 shows a pattern table of the synchronization signals of the BCA. Fig. 29 is a view showing the configuration of an ECC block of a BCA code. Figure 30 is a diagram showing the structure of a data block of the BCA. Fig. 31 is a block diagram showing an optical information recording and reproducing apparatus used in the embodiment. [Main component symbol description] 3100: Optical disc 3 1 〇 1 : Optical disc motor 3102 : Optical pickup -22-