201007728 九、發明說明： 【發明所屬之技術領域】 本發明有關-種光碟冑份區管理結構及方&，尤其是 關於可覆寫式光碟，建立管理結構，在燒錄缺陷資料區塊 備h Η對備份區燒錄品質耗損的管理方法。 【先前技術】 由於光碟的記號微小又密集，極易受到污潰沾染、灰 ❹塵、剖及不正常燒錄等破壞，產生無法讀寫的缺陷。可 覆寫的光碟提供缺陷管理機制，讓產生缺陷的資料，另行 備份在志碟的僙份區，以順利讀寫羌碟資料。丨 如圖1所示，為先前技術光碟缺陷資料備份之管理結 構。先韵技術可覆寫光碟1〇的資料執由内圈至外圈，依序 分為導入區（Lead In Area) 1卜備份丨區（Backup Area !) 12、使用者資料區（User DataArea)13、備份 2 區（Backup Area 2)14及導出區（Lead Out Area)15等。導入區η具 ❹有一缺陷管理區（Defect Management AREA，簡稱 DMA)16， 利用缺陷管理表記錄光碟缺陷資料區塊及其備份置換區塊 的相對應位址。當光碟在使用者資料區13燒錄資料區塊 1、2、3、4、5時，先由缺陷管理表檢查出資料區塊2為 缺陷位置’並在備份1或2區中規劃備份位置。燒錄資料 時跳過資料區塊2’將資料區塊2直接燒錄在置換區塊\， 經過讀取及驗證置換區塊a，如有缺陷需再啟動缺陷管理 機制進行備份’如為無誤後則形成備份區塊。再將資料區 塊2及置換區塊a的位址登錄在缺陷管理表，然後重新將 201007728 _ 缺陷管理表燒錄至光碟10的缺陷管理區。當依序讀取光碟 - 10資料區塊1、2、3、4、5時，一讀到缺陷資料區塊2， 直接移至備份1區12讀取備份的置換區塊a，取代資料區 塊2，順利完成讀寫，以提高讀取效率。 然而，可覆寫光碟10經過多次燒錄覆寫後，光碟材質 產生耗損變化，燒錄品質隨著衰變，甚至無法讀取。由於 光碟10的備份區容量相對較少，尤其是高容量、記號極微 q 小的藍光光碟（Blu-ray Disc)，以及標案系統的LBA=0的 備份區塊，覆寫的頻率較使用者資料區高，更容易造成備 份區的耗損，夢致燒錄品質下降，需一再取動缺障管理機 制進行備份，影響光碟10的讀寫效率。雖然先前技術光碟 在缺陷管理表記錄缺陷區塊的變動，但其資訊及格式無法 作為備份區的耗損管理。況且利用缺陷管理表管理備份區 的耗損，將增加缺陷管理表的覆寫頻率，讓缺陷管理表產 生快速耗損，更易造成整個光碟無法讀寫的缺點。因此， Q 先前技術光碟備份區在耗損的管理上，仍有問題亟待解決。 【發明内容】 本發明之目的在提供一種光碟備份區耗損管理結構， 利用在光碟導入區的光碟定義結構區，記錄備份區中各置 換區塊覆寫的次數，以進行耗損管理。 本發明之另一目的在提供一種光碟備份區耗損管理方 - 法，藉由主動管理備份區的耗損，提前避開有耗損疑慮的 ' 置換區塊，以提高讀取的效率。 201007728 本發明之再一目％ 法，當規劃缺陷區塊=提供—種光碟備份區耗損管理方 維持燒錄品質私值;，搜料寫讀低於能 現。 、置換區塊進行備份，以減少缺陷出 本發明之又—目 a , 叼在提供一種光碟備份區耗損管理方 次λ, ί五錄更換區塊及其覆寫次數，節省資 訊儲存空間及貝料處理。 為了達到前述發明& 口 ^ ❹理結構，設在一可覆二=二發明光碟備份區耗損管 區，關管理料係光碟包含導人區及備份 广 ^ , 在導入£或光碟定義磺構區宾白保留 區’建立一耗損管理表，4 衣5己錄備份區中所有或已覆寫置換 區塊的位址及覆寫次翁的次j lrfe i的貝訊，作為選用為備份置換區塊 之依據。 # 絲麵份區_管财法，用以燒錄具有耗損 =理感之可覆寫光碟’該耗損管理資訊記錄置換區塊及 ❿：:覆寫:數S光碟的缺陷資料區塊開始進行備份；搜尋 光碟備伤區中的置換區塊；檢查該置換區塊之覆寫次數大 於預定值’假如大於預定值，則搜尋其它的置換區塊，假 如不大於預定值，則在置換區塊燒錄備份資料；增加該耗 損管理資訊中置換區塊的覆寫次數一次，最後結束燒錄。 本發明另-實施例先碟傷份區耗損管理方法，對光碟 的缺陷資料區塊開始進行備份；搜尋光碟備份區中的置換 區塊；檢查耗損管理資訊有置換區塊，沒有則登錄置換區 塊的位址及覆寫讀至㈣管理資訊，並設定覆寫次數為 201007728 〇次，再檢查該置換區塊之覆寫次數大於預定值，假如大 於預定值，則搜尋其它的置換區塊，假如不大於預定值， 則在置換區塊燒錄備份資料；增加該耗損管理資訊中該置 換區塊的覆寫次數一次，最後結束燒錄。201007728 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to an optical disc management area management structure and a &, in particular, to a rewritable optical disc, establishing a management structure, and preparing a defect data block h 管理 Management method for burning quality loss in the backup area. [Prior Art] Since the mark of the optical disc is small and dense, it is easily damaged by contamination, ash, dust, cross-section and abnormal burning, resulting in defects that cannot be read or written. The rewritable CD provides a defect management mechanism to allow the defective data to be backed up in the backup area of the CD to read and write the data.丨 As shown in Figure 1, it is the management structure of the prior art CD defect data backup. The first rhyme technology can overwrite the information of the disc 1 from the inner ring to the outer ring, and is divided into the lead in area (Lead In Area) 1 backup area (Backup Area!) 12, user data area (User DataArea) 13. Backup Area 2 14 and Lead Out Area 15 etc. The lead-in area η has a defect management area (DMA) 16, and uses the defect management table to record the corresponding address of the disc defect data block and its backup replacement block. When the optical disc burns the data blocks 1, 2, 3, 4, 5 in the user data area 13, the defect management table first checks that the data block 2 is the defect location 'and plans the backup location in the backup 1 or 2 area. . Skip the data block when burning the data. 2' Burn the data block 2 directly into the replacement block\. After reading and verifying the replacement block a, if there is a defect, you need to start the defect management mechanism for backup. After that, a backup block is formed. Then, the address of the data block 2 and the replacement block a are registered in the defect management table, and then the 201007728 _ defect management table is re-burned to the defect management area of the optical disk 10. When sequentially reading the optical disc - 10 data blocks 1, 2, 3, 4, 5, once the defect data block 2 is read, it is directly moved to the backup 1 area 12 to read the backup replacement block a, replacing the data area. Block 2, successfully completes reading and writing to improve reading efficiency. However, after the overwrite of the optical disc 10 is repeated and burned, the material of the optical disc is subjected to wear and tear, and the quality of the burn is degraded and cannot be read. Since the backup area of the optical disc 10 has relatively small capacity, especially a Blu-ray Disc with a high capacity, a very small mark, and a backup block of the LBA=0 of the standard system, the frequency of overwriting is higher than that of the user. The data area is high, which is more likely to cause the loss of the backup area, and the quality of the dream burning is degraded. It is necessary to repeatedly take the defect management mechanism for backup, which affects the reading and writing efficiency of the optical disc 10. Although the prior art optical disc records the change of the defective block in the defect management table, its information and format cannot be used as the wear and tear management of the backup area. Moreover, using the defect management table to manage the consumption of the backup area will increase the frequency of overwriting of the defect management table, causing the defect management table to be quickly depleted, which is more likely to cause the entire optical disk to be unreadable. Therefore, Q's prior art CD-ROM backup area still has problems to be solved in the management of wear and tear. SUMMARY OF THE INVENTION The object of the present invention is to provide a disc storage management structure for a disc backup area, and use the disc definition structure area in the disc lead-in area to record the number of times each block block in the backup area is overwritten to perform wear management. Another object of the present invention is to provide a disc storage management method for a disc backup area, which actively avoids the wear and tear of the 'displacement block' in advance to improve the efficiency of reading by actively managing the loss of the backup area. 201007728 A further method of the present invention, when planning a defective block = providing - a disc backup area consumption management party maintains the burning quality private value; the search writing is less than available. The replacement block is backed up to reduce the defects, and the present invention is further provided, and a disk backup area is provided for the management of the λ, λ, the replacement block and the number of times of overwriting, saving information storage space and shellfish. Material processing. In order to achieve the foregoing invention & ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Binbai Reservation Area' establishes a loss management table, and all the addresses in the backup area of the 4 garments have been overwritten and the address of the sub-jörfe i, which is the secondary replacement, is selected as the backup replacement area. The basis of the block. #丝面分区_管财法, used to burn rewritable discs with wear and loss of sense. 'The loss management information record replacement block and ❿:: Overwrite: The defect data block of the number S disc starts Backup; search for the replacement block in the disc preparation area; check that the number of overwrites of the replacement block is greater than a predetermined value. If the value is greater than the predetermined value, search for other replacement blocks, if not greater than the predetermined value, then replace the block Burn the backup data; increase the number of overwrites of the replacement block in the loss management information once, and finally finish the burning. In another embodiment of the present invention, the disc damage area management method is first, and the defect data block of the optical disc is backed up; the replacement block in the disc backup area is searched; the wear management information is replaced by the replacement block, and the replacement area is not registered. The address and overwrite of the block are read to (4) management information, and the number of overwrites is set to 201007728 times, and then the number of overwrites of the replacement block is greater than a predetermined value. If it is greater than the predetermined value, the other replacement blocks are searched. If it is not greater than the predetermined value, the backup data is burned in the replacement block; the number of overwrites of the replacement block in the loss management information is increased once, and finally the burning is ended.
❹ 本發明再一實施例光碟備份區耗損管理方法，對光碟 的缺陷資料區塊開始進行備份前，先讀取光碟的缺陷管理 表及耗損管理表的管理資訊備用，收到燒錄指令，規劃資 料區塊為燒錄的目標區塊，檢查目標區塊缺陷，檢查出缺 陷，再進行備份。另於燒錄備份資料後，讀取及驗證置換 區塊以檢查缺释，有缺陷則重新尋找備份的置換择塊，無 缺陷則在缺陷管理表中登錄該資料區塊及其備份置換區塊 的位址。並於結束燒錄時’檢查燒錄指令完成，假如未完 成，則等待燒錄指令’否則燒錄缺陷管理表及耗損管理表 後，再結束燒錄。 【實施方式】 有關本發明為達成上述目的’所採用之技術手段及其 功效，茲舉較佳實施例，並配合圖式加以說明如下。 請參考圖2，為本發明光碟20備份區耗損管理結構及 過程。該光碟片20的資料執由内圈至外圈，依序分為導入 區21、.備份1區22、使用者資料區23、備份2區24及導 出區25等。導入區21用以記載光碟20的管理資訊，内含 缺陷管理區26及光碟定義結構區（Disc Definiti〇n Structure ’簡稱DDS)27。使用者資料區23包含多個資料 區塊’用以記錄資料。備份1區22及備份2區24等備份 201007728 區包含複數個置換區塊 .25則為光碟最後資料區塊的備份。導出區 其夂’缺陷管理區26 ，其備份置換區塊-應二錄缺陷區 光碟20的特徵資訊，内 "疋義、、、。構區27記錄 耗損管理結構，以利用光二區。本發明第-實施例 例’但不限在該區，亦二、、、°構區27的空白保留區舉 ❹立如圖3所示的耗損 =區21其它空白保留區，建 所有各置換區塊的位址及理表令記錄備份區， 始時設家各置_塊的:寫的耗損管理資訊，開 次的燒錄，.增加一次二、、各置換/區塊每-估置換區塊的耗損程产：’以累積的覆寫次數作為評 由實際覆寫測試，可獲;’本覆寫次數越多耗損程度越大。經 寫次數，作為置拖光碟2Q能維持燒錄品質的平均覆 錚it份日4· 鬼耗損管理的預定值。當在備份區焯 綠備伤時，對覆寫次 你财枝燒 翁錄品質耗損程度的置預疋值’表示㈣無法維持燒 區塊’廢棄 费°° 4 ’主動將該置換區塊視為缺陷 &用覆寫次數不大於預定值的置換區塊。 达匕，本_潑^明笛„ 即可利用光碟暮只靶例光碟備份區耗損管理結構， 白徂齒F ’、入區21中例如光碟定義結構區.27等的空 塊的位址及員管理表，以其記錄備份區中各置換區 耗損程产，、禺— 人數的耗損管理資訊，掌握各置換區塊的 、心X達到備份區的耗損管理。 例光:Ϊί =理圖方3及圖4。圖4為本發明第-實施 耗知s理方法之流程。本發明利用耗損管理 201007728 表子備伤區各置換區塊燒錄品質耗損管理的詳細步驟說 明如下：步驟R1首先發現缺陷區塊時開始進行備份。進入 步驟R2 ’搜尋備份區中的置換區塊準備進行備份。再進入 步驟R3 ’根據導入區21建立的備份區耗損管理表，利用 A，備伤區中各置換區塊的.位址及其覆寫次數的資訊 搜哥的，換區塊，檢查其覆寫次數是否大於預定值？假如 大於預疋值，表示搜尋的置換區塊耗損程度過大，廢棄不 〇用三並回至步驟R2繼續設定及搜尋其它置換區塊，假2覆 寫次數不大於預定值，則進入步驟R4，在該搜尋的置換區 塊，燒_份/資料’備份完成錢人㈣邱，·損管二 表中為置換區塊的覆寫次數增加一次。然後進 結束備份區耗損管理。 WKb 因此，本發明第一實施例光碟備份區耗損管理方法， 即可在規劃新置換區塊進行缺陷備份時，根據耗損管理資 訊，搜尋覆寫次數低於預定值的置換區塊進行備份，主動 _避開有，損疑慮的置換區塊，以便雉持置換區塊的燒錄品 、減夕置換區塊再出現缺陷，-降低再啟動缺陷管理機制， 達到提高讀寫效率的目的。 如圖5所示，為本發明第二實施例光碟備份區耗損管 理方法之流程。本實施例的基本流程與第一實施例相似， 不同之處在於第一實施例利用的耗損管理表，已依序建立 ί備伤區中各置換區塊的耗損管理資訊，而本實施例利用 的耗知管理表，係依使用先後，逐筆登錄已覆寫過的置換 區塊。 201007728 本發明第二實施例光碟備份區耗損管理方法 詳細步驟說明如下：步驟S1首先發現缺陷區塊開後程的 份。進入步驟S2，搜尋備份區中的置換區塊準備汗#行傷 再進入步驟S3,檢查耗損管理資訊是否 仃備份。 ❹ 參 如沒有，則在步驟S4依序登錄該置換區塊至耗：埯？假 訊，並設定覆寫次數為〇次，接著進入步驟％，厂理資 管理資訊有該置換區塊，則進入步驟S5，根據耗二輪員 訊’利用記錄備份區中各置換區塊的位址及 乂理資 資訊’對搜尋的置換區塊，檢查其覆寫次數是否：：數的 :?二：大衿預定值，表示搜尋的置輕，定 C，廢棄不用並回至步驟S2繼續設定及搜尋42過 二3 備份資料，傭份完成後進人步驟 二該置換區塊的覆寫次數增加-二 入步驟S8，結束備份區耗損管理。 然後進 可二區r:先份區耗損管理方法， 數，並需對初次使用的置換且錄更換區塊及其覆寫次 設定為0,形成備份區耗損表進行登錄及將覆寫次數 置換區塊進行耗損管理，達表。因此不必對未使用的 錄空間與資科處理。 即令光碟及緩衝記憶體的記 请再參考圖2及圖6，圖 備份區耗損管理方法之、直寿、'為本發明第三實施例光碟 備本發明備份區耗指技寿w光碟機控制系統別讀寫具 、吕理、、-〇構之先碟2〇時，在步驟了1先 201007728 由其控制單元31控制讀取頭32，讀取導入區21包含缺陷 管理表及耗損管理表的管理資訊，暫存在緩衝記憶體33中 備用。在步驟T2等到光碟機控制系統30收到主機燒錄的 指令及需要燒錄的資料，將接收需要燒錄資料暫存在緩衝 記憶體33中，並根據緩衝記憶體33中備用的導入區21管 理資訊，在使用者資料區23規劃燒錄所需的資料區塊1、 2、 3、4、5的目標區塊。進入步驟T3利用導入區21中的 @ 缺陷管理表，檢查目標區塊中是否有缺陷區塊？假如未檢 查出缺陷區塊，則進入步驟T4，正常燒錄資料區塊1、2、 3、 4、5，燒蟑後進入步驟T12，假如檢查,出資料/區塊2為 缺陷區塊，則進入步驟T 5尋找備份的置換區塊a。 接著進入步驟T6由緩衝記憶體33備用的耗損管理表 中，檢查置換區塊a的覆寫次數是否大於預定值？假如大 於預定值，則回步驟T5重新尋找備份的置換區塊，假如不 大於預定值，則進入步驟T7設定置換區塊a作為缺陷資料 φ 區塊2的備份，以主動避開有耗損疑慮的置換區塊，控制 系統30並藉由控制單元31控制讀取頭32，將緩衝記憶體 33需要燒錄資料依序燒錄在資料區塊1、2、3、4、5。一 碰到缺陷的資料區塊2，即跳至置換區塊a繼續燒錄。完 成燒縴備份置換區塊a後，再回至資料區塊3繼續燒錄， 至資料區塊5燒錄完成為止。 v 進入步驟T8，增加緩衝記憶體33中耗損管理表該置 ' 換區塊a的覆寫次數一次。在步驟T9讀取剛燒錄的區塊， 進行驗證是否正確燒錄。再進入步驟T10，由驗證結果檢 12 201007728 查燒錄區塊是否出現缺陷區塊？假如出現缺陷區塊，則回 . 步驟T5重新尋找備份的置換區塊，重覆執行直到正確燒錄 為止。假如未出現缺陷區塊，則進入步驟T11，在缓衝記 憶體33缺陷管理表中登錄資料區塊2與備份置換區塊a的 位址。然後進入步驟T12，檢查燒錄指令是否完成？假如 未完成，則回至步驟T2等待主機新的燒錄指令，如果燒錄 指令完成，則進入步驟T13將緩衝記憶體33的缺陷管理表 ^ 及耗損管理表，燒錄回導入區21中，結束燒錄步驟。 因此，本發明即可利用在導入區另建立備份區的耗損 管理表,，以其/登錄的耗損資訊，在讀寫光/碟時，/不影響光 碟機缺陷管理機制，掌握備份區各置換區塊的耗損程度， 在規劃新的置換區塊時，主動避開已耗損的置換區塊，減 少缺陷管理機制啟動的頻率，達到提高光碟機讀寫效率的 目的。 以上所述者，僅用以方便說明本發明之較佳實施例， Q 本發明之範圍不限於該等較佳實施例，凡依本發明所做的 任何變更，於不脫離本發明之精神下，皆屬本發明申請專 利之範圍。 13 201007728 【圖式簡單說明】 圖1為先前技術光碟缺陷資料備份管理結構之示意圖。 圖2為本發明光碟備份區耗損管理結構及過程之示意圖。 圖3為本發明光碟備份區耗損管理表。 圖4為本發明第一實施例光碟備份區耗損管理方法之流程 圖。 圖5為本發明第二實施例光碟備份區耗損管理方法之流程再 A method for managing the loss of the optical disc backup area according to another embodiment of the present invention, before the backup of the defect data block of the optical disc is started, the management information of the defect management table and the wear management table of the optical disc is read, and the programming instruction is received, and the programming is received. The data block is the target block for burning, check the defect of the target block, check the defect, and then back up. After burning the backup data, the replacement block is read and verified to check for the missing, and if there is a defect, the replacement block is searched for again. If there is no defect, the data block and its backup replacement block are registered in the defect management table. Address. At the end of the burning, the inspection programming command is completed. If it is not completed, wait for the programming command. Otherwise, the defect management table and the wear management table are burned, and then the burning is completed. [Embodiment] The technical means and the effects of the present invention in order to achieve the above object are described in the following preferred embodiments, with reference to the drawings. Please refer to FIG. 2, which illustrates the structure and process of the loss management of the optical disc 20 backup area of the present invention. The data of the optical disc 20 is carried out from the inner ring to the outer ring, and is sequentially divided into a lead-in area 21, a backup 1 area 22, a user data area 23, a backup 2 area 24, and a lead-out area 25. The lead-in area 21 is for describing management information of the optical disc 20, and includes a defect management area 26 and a disc definition structure area (DDS) 27 for disc. The user profile area 23 contains a plurality of data blocks 'for recording data. Backup 1 area 22 and backup 2 area 24 and other backups 201007728 area contains a plurality of replacement blocks. 25 is the backup of the last data block of the optical disc. The export area 夂 缺陷 defect management area 26, its backup replacement block - should record the characteristic information of the disc 20 in the defective area, inside "疋义,、,. Zone 27 records the wear management structure to utilize the light zone. The first embodiment of the present invention is not limited to the area, but also the blank reserved area of the second, and θ constituting area 27 is erected as shown in Fig. 3, and the other blank reserved areas of the area 21 are constructed. The address and the table of the block order record the backup area. At the beginning, the home set _ block: write the loss management information, start the burn, increase the time two, each replacement / block per-estimate replacement The consumption of the block is: 'According to the actual number of overwrites as the actual overwrite test, you can get it; 'The more the number of overwrites, the more the damage is. The number of times of writing, as the average value of the 4# ghost loss management that can maintain the burning quality of the 2Q. When the green area in the backup area is smeared, the pre-existing value of the quality of the burnt-burning record is indicated. (4) It is impossible to maintain the burning block 'disposal fee ° ° 4 'actively view the replacement block A replacement block whose number of overwrites is not greater than a predetermined value is used for the defect & Daxie, this _ splash ^ Ming flute „ can use the optical disc 暮 only the target disc backup area wear management structure, white F F ', into the area 21, such as the optical disc definition structure area. 27 empty block address and The staff management table records the wear and tear management information of each replacement area in the backup area, and the consumption management information of the number of people in the backup area, and grasps the loss management of each replacement block and the heart X to reach the backup area. Example: Ϊί =理图方3 and Fig. 4. Fig. 4 is a flow chart of the first embodiment of the present invention. The detailed steps of the quality management of each of the replacement blocks in the disaster recovery area of the present invention are as follows: Step R1 first When the defect block is found, the backup is started. Go to step R2 'Search for the replacement block in the backup area to prepare for backup. Then go to step R3. 'Based on the backup area consumption management table established in the lead-in area 21, use A, each in the injury area. The information of the address of the replacement block and the number of times of its overwriting is searched. If the block is changed, check whether the number of overwrites is greater than the predetermined value. If it is greater than the pre-depreciation value, it means that the replacement block of the search is too large, and is not discarded. Use And returning to step R2 to continue setting and searching for other replacement blocks, if the number of overwrites is not greater than the predetermined value, then the process proceeds to step R4, in which the replacement block is burned, and the data is backed up to complete the money (4) Qiu. The number of overwrites of the replacement block is increased once in the second table of the damage. Then, the loss management of the backup area is ended. WKb Therefore, the method for managing the loss of the optical disk backup area in the first embodiment of the present invention can be performed in planning a new replacement block. When the defect is backed up, according to the loss management information, the replacement block whose search times are less than the predetermined value is searched for backup, and actively replaces the defective block with the damage, so as to maintain the burned goods of the replacement block and reduce the eve. The replacement block has a defect again, and the defect management mechanism is reduced to achieve the purpose of improving the efficiency of reading and writing. As shown in FIG. 5, it is a flow of the method for managing the loss of the optical disk backup area in the second embodiment of the present invention. The process is similar to that of the first embodiment, except that the wear management table used by the first embodiment has sequentially established the wear management information of each replacement block in the injured area, and the implementation is implemented. The consumption management table used in the example is used to log in the overwritten replacement block one by one according to the use order. 201007728 The detailed steps of the optical disk backup area consumption management method in the second embodiment of the present invention are as follows: Step S1 first finds the defective block The process proceeds to step S2, and the replacement block in the backup area is searched for the sweat. Then the process proceeds to step S3 to check whether the loss management information is backed up. 参 If no, the device replaces the replacement area in step S4. Block to consumption: 埯? 假?, and set the number of overwrites to 〇, then go to step %, the factory management information has the replacement block, then proceed to step S5, according to the consumption of two rounds of 'utilization record backup area The address of each replacement block and the information of the replacement information. For the replacement block of the search, check whether the number of overwrites is:: the number: ? 2: the predetermined value of the search, indicating that the search is light, set C, and discard And returning to step S2 to continue to set and search 42 2 3 backup data, after the commission is completed, the number of overwriting of the replacement block is increased in step 2 - the second step S8 is ended, and the backup area consumption management is ended. Then enter the second area r: the first part of the area loss management method, the number, and the first use of the replacement and record replacement block and its overwrite times set to 0, form a backup area loss table to log in and replace the number of overwrites The block performs wear management and reaches the table. Therefore, it is not necessary to deal with unused recording space and capital. For the record of the optical disc and the buffer memory, please refer to FIG. 2 and FIG. 6 again. The backup area is used for the management method of the loss management method of the backup area, and is the third embodiment of the present invention. When the first disc of the reader, the Lv, and the 〇 〇 2 2 , , , 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 077 The management information is temporarily stored in the buffer memory 33 for use. After the CD-ROM control system 30 receives the command of the host programming and the data to be burned, the device that needs to be burned is temporarily stored in the buffer memory 33, and is managed according to the spare lead-in area 21 in the buffer memory 33. Information, in the user data area 23, plan the target blocks of the data blocks 1, 2, 3, 4, and 5 required for burning. Going to step T3, using the @defect management table in the lead-in area 21, is there a defect block in the target block? If the defective block is not detected, the process proceeds to step T4, and the data blocks 1, 2, 3, 4, and 5 are normally burned, and then the process proceeds to step T12. If the inspection is performed, the data/block 2 is a defective block. Then, the process proceeds to step T5 to find the replaced replacement block a. Next, in step T6, the wear management table spared by the buffer memory 33 checks whether the number of overwrites of the replacement block a is greater than a predetermined value. If it is greater than the predetermined value, return to step T5 to find the backup replacement block again. If it is not greater than the predetermined value, proceed to step T7 to set the replacement block a as the backup of the defect data φ block 2, to actively avoid the lossy doubts. In the replacement block, the control system 30 controls the read head 32 by the control unit 31, and the buffer memory 33 needs to be burned in the data blocks 1, 2, 3, 4, and 5 in sequence. When it encounters the defective data block 2, it jumps to the replacement block a to continue burning. After completing the burn-in backup replacement block a, return to the data block 3 to continue the burning until the data block 5 is burned. v Proceeding to step T8, increasing the wear management table in the buffer memory 33 to set the number of overwrites of the block a. At step T9, the block just burned is read, and it is verified whether the block is correctly burned. Then, the process proceeds to step T10, and the verification result is checked. 12 201007728 Is there a defective block in the burned block? If there is a defective block, go back. Step T5 re-find the replaced replacement block and repeat it until it is properly burned. If the defective block does not appear, the process proceeds to step T11, where the address of the data block 2 and the backup replacement block a are registered in the buffer memory 33 defect management table. Then proceed to step T12 to check if the programming command is completed. If it is not completed, return to step T2 to wait for a new programming command of the host. If the programming command is completed, proceed to step T13 to burn the defect management table and the loss management table of the buffer memory 33 back into the lead-in area 21, End the burning step. Therefore, the present invention can utilize the wear management table of the backup area in the lead-in area, and use the / loss information of the login to read/write the light/disc,/do not affect the defect management mechanism of the optical disk drive, and master the replacement of the backup area. The degree of wear of the block, when planning a new replacement block, actively avoids the worn replacement block, reduces the frequency of the defect management mechanism, and achieves the purpose of improving the read and write efficiency of the optical disk drive. The above is only to facilitate the description of the preferred embodiments of the present invention, and the scope of the present invention is not limited to the preferred embodiments, and any changes made in accordance with the present invention may be made without departing from the spirit of the present invention. All of them are within the scope of the patent application of the present invention. 13 201007728 [Simple Description of the Drawings] FIG. 1 is a schematic diagram of a prior art optical disc defect data backup management structure. 2 is a schematic diagram of a loss management structure and process of a disc backup area according to the present invention. FIG. 3 is a diagram of a loss management table of a disc backup area according to the present invention. 4 is a flow chart of a method for managing wear and loss of a disc backup area according to a first embodiment of the present invention. FIG. 5 is a flowchart of a method for managing loss management of a disc backup area according to a second embodiment of the present invention;
圖。 圖6為本發明第三實施例光碟備份區耗損管理方法之流程 i 0 / _ / / 【主要元件符號說明】 20 光碟 21 導入區 22 備份1區 23 使用者資料區 24 備份2區 25 導出區 26 缺陷管理區 27 光碟定義結構區 30 控制系統 31 控制單元 32 讀取頭 33 缓衝記憶體 14Figure. 6 is a flow chart of a method for managing wear and loss of a disc backup area according to a third embodiment of the present invention. i 0 / _ / / [Description of main component symbols] 20 Disc 21 lead-in area 22 Backup 1 area 23 User data area 24 Backup 2 area 25 Export area 26 defect management area 27 disc definition structure area 30 control system 31 control unit 32 read head 33 buffer memory 14