TWI286315B - Write-once optical disc and method for recording management information thereon - Google Patents

Abstract

A write-once optical disc and a method and apparatus for recording management information on the disc are provided. The method includes recording an opened SRR information on a recording medium, and removing an identification of a certain SRR from the opened SRR information once the certain SRR is closed. The opened SRR information carries an identification of any opened SRR, and the number of opened SRRs allowed is at most a predetermined number.

Description

1286315 I ) IX. Description of the Invention: [Technical Field] The present invention relates to a write-once optical disc; a method for recording management information on the write-once optical disc; and a method using the same Record/play device. [Prior Art]

Among optical recording media, optical discs that can record high-capacity data are widely used. Among them, a high-density optical recording medium HEKDVD (for example, Blu-ray Disc) has been developed for a long time for recording and storing high-definition video material and high-quality audio material.

Blue-ray discs are the next generation of HD-DVD technology and next-generation optical recording solutions, with superior capacity for storing more data than existing DVDs. Recently, the technical specifications of the HD-DVD international standard have been completed. Related to this, various standards for the write-once type Blu-ray disc (BD_w〇) after the specifications for the rewritable (BD-RE) Blu-ray disc are also being prepared. In such standards for write-once optical discs (BD-W), a method for managing information on 5 recorded discs is discussed. This method involves a recording method of an information indicating a recording state of the optical disc, which is one of the characteristics of the write-once optical disc. The information showing the recording status of the 4 discs allows a host or a user to easily find a recordable area on the S-nd write type disc. In the current one, the name of the information is different. For example, 5 1286315 ^ > In the CD series, this information is called an information); however, in the DVD series, the Rzone or a fragment. Therefore, there is a growing need for a method of efficiently recording management information corresponding to a recording state. And for the sake of sex, the method must have standardized information. The method of recording the management information on a compact disc, the manageable write-once type high-density optical disc and the blue light. SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a method of managing a disc at a write-once. This method substantially eliminates the limitations and disadvantages caused by the technology. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and apparatus for recording a management information that can more efficiently record status information. Another object of the present invention is to define a type of continuous recording recording range (SRR), and a method and apparatus for recording SRR on sequential sequential information (SRRI). Another object of the present invention is to provide A write-once light and a SRRI that facilitates recording/playback of the optical disc. A further object of the present invention is to provide a method of recording a recovery SRRI; and an orbital information (track is called an R) In addition to ensuring bi-directional compatibility of the high-density optical disc, it is also required to perform defective discs, and a recording and management of the optical range using one or more of the phase-discriminating optical discs (sequential provides a It is used to record a structure of a recording range ο disc. The method of SRRI can be applied to a 1386315 write-once disc. The extent of the invention is as follows. The description is only the application of the present invention. [Embodiment will now be represented in the drawings. Ange, a simple recording and playback device called "information continuous recording mode 1 S BD-WO" in its area. Its advantages, objectives and features will be described in detail in the following narrative. And to some extent, it can be understood from the following description of the technical field, or through the invention. It can be understood in particular by the description of the following text, the application and the attached drawings and the like. The invention has been described with respect to the invention, and the following description of the invention and the following detailed description of the invention are intended for purposes of illustration The embodiments are described in detail, and examples thereof will not. As far as possible, the same component symbols will be used in all the drawings or the like. The invention 'forms a plurality of regions in a disc (such as a BD-WO) domain as a continuous § Sequential recording (SRR). Perform a recording action on these areas or play an action from this line. A resource indicating the recording status of the disc. Sequential recording range (SRRI), SRRI means that it is applied to a disc. The SRRI is associated with one or more SRRs.] A write-once optical disc (such as a - according to the present invention) Structure 'and a method for recording optical disc management information 1286315. The optical disc shown in Fig. 1 has a single recording layer as an example. However, the present invention is not limited thereto, and it can be applied to a dual Or multiple recording layer discs.

Referring to Fig. 1, the optical disc includes a lead-in area, a data area, and a lead-out area, all located on the recording layer. The lead-in area and the lead-out area have a plurality of optical disc (or defect) management areas (DMA 1-DMA4) for repeatedly storing the same defect management information. In the data area, an inner spare area IS A0 and/or an outer spare area OSAO for replacing the defective area are provided. As is well known, a rewritable optical disc does not have or requires a large DMA because the DMA can be repeatedly written and erased (even if the optical disc has a DMA of a limited size). But this is not the case for write-once discs (such as a BD-WO). Since the write-once optical disc cannot be re-recorded on the previously recorded area, the write-once optical disc requires and has a large management area. In order to store management information more efficiently, the management information stored in the write-once optical disc is stored in a temporary optical disc.

In the temporary disc management area (TD ΜA). When the disc is about to be ended/closed, the management information stored in a last or latest TDMA is transferred to a DMA for more permanent storage. As shown in Fig. 1, the optical disc includes two TDMAs: TDMA0 and TDMA1. The TDMA0 is assigned to the lead-in area and has a fixed, constant size. The TDMA1 is assigned to the outer spare area 〇sA0 and has a variable size in accordance with the size of the spare area. For example, the

1286315 > I TDMA1 size P can be P = (N * 256) / 4 clusters (ciuster) (P is about a quarter of the size of the entire outer spare area OS AO), where N is a positive integer. In each of TDMA0 and TDMA1, a temporary defect list (TDFL) information and a temporary disc definition structure (TDDS) information (TDFL + TDDS) can be recorded together in a recording unit (such as BD). - a cluster in the WO disc; or SRRI and TDDS information (SRRI + TDDS) can be recorded together in one of the recording units as shown. The SRRI is recorded when a continuous recording method is used, and a space bit map (SBM) is used when a random recording method is used. At the time of each update, a cluster size (TDFL + TDDS) or (SRRI + TDDS) is recorded in the TDMA. In the example of FIG. 1, a TFDL and a TDDS are recorded in a town of the TDMA0; an SRRI and a TDDS are recorded in the next cluster of the TDMA0; and an SRRI and a TDDS are recorded in the next TDMA0. In the cluster, and so on. If a defective area occurs in a data area, a procedure is adopted to replace it with a spare area. The TDFL is a piece of information that manages the program to make it a list of defects. In the case of a single layer disc, the TDFL is recorded in a size of 1 to 4 clusters depending on the size of the defect list. The disc status information indicates that a specific area of the disc is recorded or not recorded. In particular, it can be applied to the case where the disc is recorded in a continuous or increased recording method. In addition, the TDDS information is typically recorded on the last magnetic region of the 1286315 32 magnetic region in a cluster of the management area. The important negative management of the disc's general management and defect management is recorded by itself as part of the TDDS information, and the total ^ is a matter of government. When the TDMA is updated, the TDDS information is generally recorded last. 0

The present invention provides a method of recording an already recorded status information of a disc in a new high density optical disc (e.g., a bd_w). In particular, srri is used as the already recorded status information indicating that the disc has been recorded. Each SRRI is associated with one or more SRRs (rec〇rding regions). The present invention defines various different types of SRRs and will be discussed in related Figures 2A through 3E. The structure of the srri according to the present invention is illustrated in Fig. 1. As shown in Figure 1, each SRRI 60 in a TDMA typically includes three parts: a header 50 for identifying the corresponding sriu; and an SRR entry list 30 containing the SRR type. Information; and an SRR list terminator 40 to indicate the end of the corresponding SRRI.

The SRR header 50 is located at the beginning of the corresponding SRRI. 60 and includes an "SRRI structure identifier" block 51 for making the SRRI identifiable; - "Open SRR list Block 52 for identifying the location of each open SRR associated with the current SRRI; a "number of SRR items" block 53 for identifying the total number of SRRs; and an "open SRR number" block 54 for Identify the total number of open SRRs. The "Open SRR List" block 52 stores the SRR number (identification information) of the open SRR. 10 1286315 By accessing the SRRI header 50, the entire SRRI 6〇 content can be known without directly accessing the SRR item list 30. Various new SRR types or other required information can be redefined, and the information can be inserted in the header 50 as needed. The list of SRR items 30 is recorded after the 5th of the SRRI header. When the SRR item list 30 is terminated, the end of the SRR item list 30 is identified by the SRR list terminator. In particular, when the SRRI has a variable large hour, the SRR list terminator 40 is information identifying the end of the corresponding srri. The SRR project list 30 is a list in which a plurality of SRR items 35. 8 bytes (or 64 bits) are allocated to each SRR item 35, and an SRR item 35 represents an SRR information on the optical disc. . Each SRR item 35 includes an SRR status block 3 1 ; a start address block 3 2 for storing the corresponding S RR start address; a reserved area 3 3 ; and a last recorded address (last The recorded address 'abbreviated LRA' is the 34' LLA used to store the corresponding SRR. According to an embodiment, the first four significant significant bits (b63 to b60) of the 64 bits of the SRR entry 35 are assigned to the SRR state intercept 31; the next 28 bits of the SRR entry 35 (b59 to b32) Assigned to the start address block 32; the next 4 bits (b3 1 to b28) of the SRR entry 35 are assigned to the reserved area 33; and the last 28 bits (b27 to b0) of the SRR item 35 are assigned to the LRA block 32. Therefore, as management information for the disc, the SRRI includes a header, a list of SRR items, and an SRR list terminator. In the case of each update 11 1286315, all such information will be recorded together. One of the objects of the present invention is to define and distinguish various types of SRRs formed on a disc and use them to record to or from a disc. Therefore, according to the present invention, a method of defining the type of SRR and a piece of information in which the record can distinguish the type of SRR in the SRRI will be defined.

In particular, an SRR is an area reserved for recording data or information on a write-once optical disc (e.g., a BD-WO). The present invention defines the type of SRR based on necessity and/or development of a record. The various SRRs defined by the present invention are described in detail below with reference to Figures 2A through 3E.

2A through 2D illustrate various open SRRs for write-once optical discs (e.g., a BD-WO) in accordance with the present invention. An open SRR means an SRR that can be recorded in a corresponding area. "Recordable" means that the SRR has an SRR with a writeable address. Therefore, the open SRR is an SRR having an NWA. Unrecordable without NWA, SRR is a closed SRR. That is, the shutdown SRR is an SRR that cannot be recorded or has no NWA. The closed SRR type will be described below with reference to Figures 3A through 3E. More specifically, Figure 2A illustrates an invisible SRR in an open SRR. The invisible SRR is generally formed either at the outermost portion of the disc or at the beginning of the blank disc and means a non-recorded region. In other words, the invisible SRR has only one starting address but no end point of its region. Since the record is not executed in the invisible SRR, its LRA is zero. The NWA of the invisible SRR becomes the same as the 12 1286315 whose starting address is the SRR of the second picture. The part of the SRR is the same as the initial part. The 2C and 2B of the SRR are used for the recording. The SRR of the SRR with the domain, not the optical or the user's empty space, has the same SRR as the SRR 2D I record, and the SRR recorded in the SRR is the same as the SRR. The value. An incomplete SRR in the open SRR is shown. The incomplete SRR of the SRR is performed in the SRR when the SRR is invisible. In other words, the invisible SRR address does not have an end point of its region. Since the execution is recorded on the SRR, the LRA of the incomplete SRR is an area on which the positive record is recorded. Therefore, the next (or next) address of the NWA LR 不 of the incomplete Srr. The figure illustrates an empty SRR in the open SRR. Unlike the invisible SRR of 2A and the incomplete srr, the SRR of the empty srr is usually formed in the outermost area of an intermediate disc of the disc. In other words, after the open SRR for the host record is formed, it is the case where the recording has not been performed. It has a start address and an end address. However, because the pre-recorded state is shown, the LRA is zero and the starting address of the NWA is the same value. 3 illustrates the partial record SRR in the open SRR. This part of the field SRR is in the empty SRR state shown in Figure 2C. Some parts of the scoop perform the recorded SRR. Therefore, this part has a -start address and an end address. Because the execution part is recorded, the part records the LRA of the SRR as the most address, and the NWA is the next address of the LRA. Inventive-embodiment, because managing a write-once optical disc is very difficult to open SRR, the allowed open

13 1286315 The quantity is beneficially limited to a predetermined quantity. For example, in the case of BD-WO, the total number of open SRRs allowed is up to 16 at a given time. The position information and the number of open SRRs in the disc can be obtained by checking the "open SRR list" field 52 and the "number of open SRR" fields 54 in the SRRI header 50 in Fig. 1.

3A through 3E illustrate different types of shutdown SRRs for write-once optical discs (e.g., a BD-WO) in accordance with the present invention. Once the SRR is turned off as a non-recordable SRR, "unrecordable" means that the SRR does not have an NWA. Therefore, the closed SRR can be formed by completing the recording of the SRR. Even if the SRR has a recordable area left, the SRR can be forcibly turned off by a user or host shutdown command. More specifically, FIG. 3A illustrates closing an empty SRR in the SRR. The empty SRR is an SRR that is closed by a shutdown command in a manner that the SRR is not in the SRR state when the SRR is in the empty SRR state shown in FIG. 2C. In this regard, Figure 3A is an example of a closed, empty SRR, and Figure 2C is an example of an open, empty SRR.

Figure 3B illustrates the closing of a portion of the record SRR in the SRR. The portion of the recorded SRR is an SRR that is closed by a close command in a manner that the SRR is in an empty SRR state as shown in Fig. 2D, without additionally recording the SRR. In this regard, Fig. 3B is an example of a closed, partially recorded SRR, and Fig. 2D is an example of an open, partially recorded SRR. Figure 3C illustrates closing a complete SRR in the SRR. The complete SRR is an SRR in which a normal user profile is completely recorded to the end of the S RR. This complete SRR exists only in the closed SRR. 14 1286315

The 3D diagram illustrates turning off a portion of the records in the SRR and turning off the SRR. This type of SRR involves an SRR. When the open, partial record SRR of the 2D map is closed, it is closed after padding with certain false data in some recordable areas of the SRR (after the LRA). The entire area or some areas of the recordable area of the SRR can be padded with the dummy data. In addition to false data, a specific character code (with ASCII features) can also be used as a whole pad to replace this SRR. This padding data can be used to indicate that the SRR is off. As an example, a specific character as a whole pad data may be "CLSD" to indicate that the corresponding SRR is off. In another example, zero false data may be used such that if an SRR with such data is detected, the SRR is determined to be a closed SRR. When the open SRR is fully padded to close it, at least a portion of the recordable area of the SRR can be recorded using the full pad data. The SRR of this part may be at least one recording unit (such as a town), and may be the first cluster after the LRA. That is, when the open SRR is turned off, at least one recording unit of the open SRR (starting from the NWA) may be padded.

Figure 3E illustrates another example of turning off a closed, empty SRR in the SRR. This type of SRR involves an SRR that is turned off after the open and closed SRR of Figure 2C is closed, after it has padded some of the recordable areas of the SRR. The pad action in the 3D drawing as discussed above can be applied to this. As shown in FIGS. 3A to 3B and 3D to 3E, when an open SRR is changed to a closed SRR by a close command, unrecorded areas (no n-recorded are a) are not matted (3A and 3B). The case of closing, and the case where the unrecorded area is closed by the whole pad (Fig. 3D and 3E) is defined separately by 15 1286315.

At the same time, the situation in which the SRR is turned off without a full pad, and the case where the srr is closed after being padded with a specific whole pad can be selectively performed. In the case of existing Blu-ray discs, the unrecorded area is compatible with "play only" discs and does not even require a full pad. The recording/playback step (Fig. 14) can selectively perform the whole pad action, thereby more effectively enhancing the freedom of structure or action of the recording/playing apparatus. Further, in the whole pad operation, a recording/playing portion of the recording/playback device (e.g., component 1 in Fig. 14) can store the entire pad data in advance and automatically record an SRR when necessary. This will reduce the time required for the entire pad operation as compared to the time that the controller will transfer the entire pad and the time the pad will occur. Furthermore, if a part of the recordable area in the SRR (such as the first cluster after A) is a specific data when the SRR is closed, it may be properly restored even if the loss of SRRI is lost. The status of the current disc. The features of the present invention will be explained in detail with reference to Figures 7A through 13B.

The fourth to fourth 4G diagram illustrates an example of a process of forming an SRR according to the embodiment of the present month. In these and other figures, the - portion indicated by the thick arrow represents the -NWA bit /. Here, according to the present invention, different types of sentences will be defined and described together from the session of the hunger, . A session is a higher-level record unit and includes at least one SRR, as compared to the lower-level record unit f α , τ (e.g., a SRR). Furthermore, because a given segment is given a ^^. 16 1286315, a new segment must be allocated after all previously allocated segments are closed. Therefore, if a segment is closed, all SRRs present in that segment must be closed together. Similarly, as described above, each SRR can be turned off by the entire area of the entire pad SRR or some area of the recordable area; or it can be closed in such a manner that the recordable area of the SRR is not completely padded. This action can be selectively performed by the optical recording/playback device.

A section can be classified into different types: an empty section having only one invisible SRR; an incomplete section having at least one open SRR (other than an invisible SRR); and one having only one or more Close the full section of the SRR. In particular, Figure 4A illustrates an initial empty disc that is in a recordable state over the entire area. A starting position of the disc becomes the NWA. In such a state, there is only one SRR on the disc. This is the same as the invisible S R R that is not shown in Figure 2A. Therefore, the section here has a disc initial state in which only one empty section exists.

Fig. 4B illustrates a case when some portions of the empty optical disk of Fig. 4A are recorded or when the segment in Fig. 4A is not closed. In this state, there is only one SRR on the disc. This is the same as the incomplete SRR shown in Figure 2B. Therefore, the section here is in a state in which only one outstanding section exists. Fig. 4C illustrates a case where a sector close command is executed when the optical disk is in the state of Fig. 4B. At this time, the existing data recording area is divided into an independent, closed SRR by the section closing command, and a new (empty) section is generated. In other words, the entire recording area in Figure 4B becomes a 17 1286315

i I Complete SRR #1, which in turn constitutes a complete section #1. This unrecorded then becomes an invisible SRR (as shown in Figure 2A), followed by the section. Fig. 4D illustrates a case when the two open SRRs are reserved in the empty section. Each new, reserved, open SRR becomes SRR and has an NWA. The remaining area of the empty section is shaped as SRR. Therefore, the empty section of Fig. 4C becomes one for the fourth 4E diagram illustrating a case when the data is recorded in the SRR of the 4D map and the invisible SRR. Since the first empty SRR of the record becomes an open, the partial record SRR and the SRR become an incomplete SRR. Fig. 4F illustrates a case where the close command is executed from the state of the 4E, but the unrecorded area of the section is not closed. When the section is closed, all that is included in that section | needs to be closed. For example, with the segment close command, the existing data record area of the 4E slice becomes an independent, complete segment segment #2). All SRRs included in this full section #2 change SRR to form a close, partial record #2; - closed, empty, and a full SRR #4. The remaining outermost SRR becomes an invisible SRR #5 such as SRR, and a segment #3 with the invisible re-reserved, empty is generated. Fig. 4G illustrates another case where the segment close command is in the state of the 4E, but the unrecorded area of the segment is closed. That is, the current process can form an empty 4 C picture from the area recorded in the state record of Fig. 4 E into the empty one. The first empty action, the SRR of the square of the invisible line is incomplete (the complete area becomes closed SRR#3; the same open SRR#5 performs the whole area of the area to the 18th 1286315

The status of the 4F or 4F map. Referring to the figure, by means of the section close command, the data record area of the now incomplete section in Fig. 4E becomes an independent, complete section #2. After some or all of the remaining areas of the complete section #2 are padded with dummy data or specific character data as described above, all SRRs included in the full section #2 are changed to close srR due to the whole In the relationship of the pads, there are three closed srrs in the complete section #2. It is: When SRR#2 is turned off, after the whole pad is passed, the open, partial record srr becomes the closed SRR; once the SRR#3 is closed, it changes from the open, empty SRR to the closed SRR after the whole pad is passed. And a complete srR#4, which is changed to close the SRR because it is the physical user data. Although Figure 4 illustrates that the entire recordable area is padded when the SRR is off, the present invention encompasses an episode in which only a portion of a srr (such as a first portion or cluster after the LRA) can be Full pad. According to the present invention, when the SRR is turned off, different types of SRR may be generated depending on whether or not the entire pad is performed for the SRR shown in the 4F or 4G. Therefore, there is a need for a method of recording new coffee information.

The method can distinguish the defined SRR type to correctly indicate the recording status of the disc. One of the following is described for identification and will be described with respect to FIG. According to the identification action of the SRR type that turns off the SRR, significant changes and changes are made. SRR type method. In order to understand the method of the SRR project of the SRRI t, the method of the present invention performs the deficiencies according to the present invention, and various fifth embodiments can be made for the present invention. The first embodiment of the SRR project according to the present invention 19 1286315 * » Figure 5A (5) The SRR project structure applies to each srr item 35 of Figure i, but can also be applied to each of the other srr of a CD. As shown in the figure, the SHR item 35 includes a srr status block 31, a start address, a reserved area 33, and an LRA field 34 as discussed above. The SRR status blocker 31 carries 4-bit srr status information, which is used to distinguish that the corresponding SRR is closed with or without a full pad.

In particular, the 1-bit 7G 3 1a of the 4-bit SRR status information in the SRR status field 3丨 is used as a whole pad flag (hereinafter represented by the p_flag) to identify whether the corresponding The SRR performs a full pad. The remaining 3 bits (3 lb) of the SRR status block 31 are reserved areas for handling future modifications (if needed, p in this example, the first bit of the SRR status block 3 ι ( B63) Carrying the P_flag, and the remaining three bits (b 62 to b60) of the SRR status field 31 are used as reserved areas. However, other variations are also possible.

For this example, if the P-flag has a value "u", it means that the corresponding SRR is a closed SRR in which the whole pad action has been performed. If the P flag (P, flag) has a value "讣", it means that the corresponding SRR is a srr in which the whole pad action has not been performed. Other numbers can also be used in the P flag. Therefore, if the p flag has the value "讥, the corresponding SRR can be 1 SRR or - off. However, if the corresponding SRR is registered in the "Open List" column 1652 in the SRRI header 5 SRR, which means it is open (four) but if not logged in, it means that it is a closed SRR. 20 P80315 In the start address block 32 of the SRR entry 35, the address corresponding to the start position of the corresponding SRR is recorded. Generally speaking, it is represented by a physical sect〇r number (abbreviated as cut). The reserved area of the prison item 35 or the reserved block 3 3 is prepared for future specification modifications (if needed). The LRA block 34 of the SRR item 35 provides the corresponding SRR of the LRA, that is, the information of the user record of the corresponding recorded SRR (except for the entire data) is recorded here. In other words, in the case of a complete SRR, the lRA and SRR end addresses are identical. However, in the case where a part of the SRR is recorded, the lra and SRR end addresses are not identical to each other. The LRA is the address of an area in which the entity user is greedy. Even if a specific whole pad data is recorded in the SRR via a whole pad operation, the LRA value of the SRR does not change. Furthermore, in the case of an empty SRR, since there is no area on which the physical user is recorded, the LRA of the SRR becomes zero. The 5B and 5C diagrams illustrate two examples of different recording p-flags based on the method of generating an SRR item according to the first embodiment of the present invention. For the sake of explanation, the case of FIG. 5B is shown in FIG. 4f, in which the operation of the whole pad is not performed when the SRR is turned off, and the case of the 4th G is shown in FIG. 5C, in which the operation of the whole pad is performed when the SRR is turned off. . Referring to Figure 5B, in this example, SRR numbers #1 through #5 individually represent five SRRs. SRR#1 is a complete Srr without a full pad, which is indicated by the P-flag with the value "〇b" in the corresponding SRR item. SRR#2 is a closed, partial record, SRR without a full pad, which is indicated by the P-flag with the value 21 1286315 as "Ob" in the corresponding SRR item. SRR#3 is a closed, empty, SRR without a full pad, which is indicated by the P-flag with the value "0b" in the corresponding SRR item. SRR#4 is a complete SRR without a whole, which is indicated by the P-flag with the value "〇b" in the corresponding SRR item. SRR #5 is an invisible SRR without a full pad, which is indicated by the P-flag with a value of "Ob" in the corresponding SRR item.

In the case of Figure 5B, all SRRs do not have a full pad (as indicated by the P-flag with a value of "Ob"). Open SRR is only SRR#5 (not visible SRR). Therefore, only SRR #5 is recorded in the "Open SRR List" field 52 of the SRRI header 50, and becomes the "first open SRR" among up to 16 open SRRs. The remaining "second to sixteenth open SRR" blocks in the block 52 (Fig. 7D) are set to zero.

Referring to Fig. 5C, in the same manner, SRR numbers #1 to #5 individually represent five SRRs in order. SRR#1 is a complete SRR without a whole, which is indicated by the P-flag with the value "Ob" in the corresponding SRR item. SRR#2 is a full-pad closed, partially recorded SRR that is indicated by the P-flag with a value of "1 b" in the corresponding SRR item. SRR #3 is a fully padded closed, empty sRR ', which is indicated by the p flag of value "1 b" in the corresponding SRR item. SRR#4 is a complete SRR without a full pad, which is indicated by the P-flag of 〇bj in the corresponding SRR item. SRR#5 is an invisible SRR without a full pad, which is numerically The p-flag of "Ob" is indicated in the corresponding SRR item. In the case of Fig. 5C, the three SRRs #1, #4, and #5 do not have a full pad (as indicated by the p-flag whose value is "ob"). Two SRR#2, #3 have 22 1286315 stupid » There is a full pad (as indicated by the P-flag with the value "lb"). The open SRR is SRR#5 (invisible SRR). Therefore, only Srr#5 is recorded in the "Open SRR List" field 52 of the srrI header 50, and becomes the "first open SRR" in the "open SRR". The remaining "second to sixteenth open SRR" blocks in the block 52 are set to zero. Therefore, by defining the flag in the Srr status block of the SRR item (same as in the first embodiment), different types of closed SRRs can be distinguished. The LRA and start address information is presented in the SRR project. For example, 'the same as seen in the 3C, 3D and 3E diagrams, in which the SSR is turned off' because the positions of the LRAs are different from each other, so srr can be distinguished from each other. However, comparing Figure 3B with Figure 3D, the closed SRR has the same LRA. In this case, the identification of the SRR type by lra is very difficult. In these cases, it may be necessary to distinguish the SRR according to the whole pad action of the P-flag used. Similarly, in Figures 3A and 3B, the type of SRR can be distinguished based on the overall pad action of the P-flag used. According to an embodiment of the present invention, in order to distinguish the type of SRR, there is a need to use the P-flag in the SSR item to record the information of the entire pad, and directly represent the whole pad of the SRR. The method of whether the pad action exists. It will be apparent that such methods are included within the scope of the present invention. In this method, the presence or absence of predetermined data (such as fake data or specific real data) in a SRR can be found to distinguish the type of SRR.

6A illustrates a second embodiment in accordance with the present invention in accordance with the present invention. 6A 23 1286315 The SRR project structure of the figure applies to each SRR item of Figure 1, and can also be applied to each other coffee item on a compact disc. As shown, SRR item 35 includes, for example, one, SRR status block 31, a start address block 3, a reserved block/bay 33' U, and an LRA block 34. In particular, the 4-bit SRR state information is stored in the srr state clamp, which is used to distinguish the relative...RR from being closed in a whole or non-integrated manner, or to distinguish the SRR of the relative library from θ, w. Is the starting SRR of a segment. but,

The start address field and the LRA field of the SRR item in the ® are the same as those shown in Fig. 5A, and the description thereof will be omitted. Related technology light; f & code C 士 DVD ) 额外 additional areas (for example, send board-in # φ u , production and output board-out area) to distinguish the section, but the extra area This results in a reduction in the recording capacity of the entire disc. Because &, the present invention helps the melon to provide an identifiable segment start information, allowing the segment structure of the entire optical disc to be easily checked using only the -segment flag without the need to allocate additional regions.

Therefore, the status field 3 1 of the SRR item 35 as shown in FIG. 6A includes a bit (3 1 a) carrying a flag for identifying whether a corresponding pad action has been performed in the corresponding SRR; And another bit (3lc), which is used as a session-flag (hereinafter referred to as a flag) to identify whether the corresponding SRR is a segment start srR (start of a segment) . The remaining two bits (3 ld) of the status block 31 continue to serve as a reserved area for processing future specification modifications (if needed). As shown in Fig. 5A, if the 1>_flag in Fig. 6A has a value "1 b", it means that the corresponding s R R is a closed § r r, in which the 128 1286.315 line has been subjected to the whole pad action. If the P-flag has a value "Ob", it means that the corresponding SRR is an SRR in which the whole pad action has not been performed. Therefore, if the P-flag has the value "〇b", the corresponding SRR can be an open SRR or a closed SRR. However, if the corresponding SRR is an SRR registered in the "Open SRR List" field 52 in the SRRI header 50, it means that the corresponding SRR is an open SRR. However, if it is not logged in, it means that the corresponding SRR is a closed SRR.

Furthermore, in the example of Fig. 6A, if the S-flag has a value "lb", it means that the corresponding SRR is the segment start SRR. If the S-flag has a value "Ob", it means that the corresponding SRR is not the segment start SRR. Other values can also be used for S-flags or P-flags. Figures 6B and 6C illustrate two examples of recording P-flags and S-flags based on a method of generating an SRR item in accordance with a second embodiment of the present invention. For the sake of understanding, FIG. 6B illustrates a 4F diagram, which is a case where the whole pad action is not performed when the SRR is turned off; and FIG. 6C shows a 4G figure, which is performed when the SRR is turned off. Case.

Referring to Figure 6B, in this example, SRR numbers #1 through #5 are individually assigned to five SRRs in sequence, and the segments include two complete segments #1 and #2 and an empty segment #3. SRR#2 in Fig. 6B is a closed, partial record SRR without a full pad, which is indicated by the P-flag of "Ob" in the corresponding SRR item (SRR#2 item). Since SRR#2 is the starting SRR of the segment, the S-flag in the SRR#2 project has a value "lb". SRR#3 in Fig. 6B is a SRR without a full-pad closed, empty, and 25 1286315 is indicated in the SRR#3 item by the p-flag of "Ob". Since SRR#3 is not the starting SRR of the SRR#2 section, the Hungarian flag in the SRR#2 project has a value of “0 b”. SRR #4 in Fig. 6B is a complete SRR without a full pad, which is indicated in the SRR #4 project by the P-flag of "Ob". Since srr#4 is not the starting srr of the SRR#2 section, the Hungarian flag in the SRR#4 project has the value “Ob”.

SRR #5 in Fig. 6B is an invisible SRR without a full pad, which is indicated in the SRR #5 item by the P-flag of "Ob". Since srr#5 is the start/end SRR of the SRR#3 section, the s_flag in the SRR#5 item has a value "lb". In the case of Fig. 6B, when indicated by the p-flag of r 〇b", all SRRs do not have a full pad. For the starting segments #1, #2, and #5, the S-flag has a value of "lb". The open SRR is SRR#5 (invisible SRR). Therefore, only SRR #5 is recorded in the "Open SRR List" block 52 in the SRRI header 50, and becomes "First Open SRR".

Referring to Figure 6C, in this example, SRR numbers #1 through #5 are individually assigned to five SRRs in sequence. The section includes two complete sections #1 and #2 and an empty section #3. SRR #2 in Fig. 6C is a full-pad closed srr indicated by the P-flag of "^" in the corresponding 'Srr (SRR#2 item). Since SRR#2 is the starting srr of the segment, the S-flag in the SRR#2 project has a value "lb". SRR#3 in Fig. 6C is a closed, empty srr of the whole pad, 26 1286315 which is indicated in the SRR#3 item by the P-flag of "lb". Since SRR#3 is not the starting SRR of sector #2, the S-flag in the SRR#3 project has a value of "Ob". SRR #4 in Fig. 6C is a complete SRR without a full pad, which is indicated in the Srr#4 project by the P-flag of "〇b". Since SRR#4 is not the starting SRR of sector #2, the S-flag in the SRR#4 project has a value of "Ob". SRR #5 in Fig. 6C is an invisible srr without a full pad, which is indicated in the SRR #5 item by the P-flag of "〇b". Since SRR#5 is the starting SRR of zone #3, the S-flag in the SRR#5 project has a value of "lb". In the case of Fig. 6C, the three SRRs #1, #4, and #5, if their P-flags indicate "0b", do not have a full pad. The two SRRs #2 and #3 have a full pad if their P-flag "does not "lb". In the segment start SRR#2 and SRR#5, the S-flag is recorded r丨b". Also similar to the case of Figure 6b, the open SRR is only 81^#5 (not visible 3111〇. Therefore, only 81^#5 is recorded in the "Open SRR List" block 52 of the SRRI header 50, becoming " The first open SRR".

Therefore, as in the second embodiment, by defining P, flag and S-flag in the SRR state information, the whole pad action can be used to distinguish between closing the SRR and not adding additional regions to the segment. Start and end to distinguish between different types of sections. Thus, the optical recording/playing action is significantly and effectively improved. A method of recording and updating an SRRI capable of indicating the recording state of a disc in accordance with the present invention will now be described in accordance with the present invention. In particular, when the SRR is turned off, a specific pad can be used to make a full pad, and the lost SRRI can be effectively restored using the SRR of the pad. Figure 7A illustrates an initial empty disc with the entire area in a recordable state. The starting position of the disc becomes NWA. In this state, there is only one SRR in the disc. This is the same as the invisible SRR shown in Figure 2A. Therefore, the section is in the initial state of the disc having only one empty section. This is the case when the SRRI has not been recorded when the disc is empty. Section 7B illustrates a portion of the vacant disc of Figure 7A for the purpose of recording the material 'only this section has not been closed. In this state, there is only one SRR (SRR #1) in the disc. This is the same as the incomplete SRR shown in Figure 2B. Therefore, the optical disc is in a state of having only one incomplete section. Fig. 7C illustrates a process in the management area of the SRRI disc when the optical disc is in the state of Fig. 7B. For the sake of understanding, only some of the different components of the disc structure and the SRRI structure shown in Figure 1 are shown. For example, although (SRRI plus TDDS) or (TDFL plus TDDS) is recorded in the towns of tdMA (the TDMAO of the disc discussed above), only the SRRI is shown in the TDMAO of Figure 7C, and, for the sake of brevity The reason for TDFL or TDDS will be omitted. Furthermore, only the "open srr list" field 52 and the "list of SRR items" in the different blocks of the SRRI shown in Fig. 1 are displayed. The state of the disc recording of Fig. 7C is as in the case where all the optical regions σ ja in Fig. 7B have an open SRR (SRR #1). If the non-28 ¢ 86315 full segment SRR #1 is not formed by the method of closing the segment as in FIG. 7B, the SRRI #1 (60a) associated with SRR #1 is generated and It is recorded in TDMAO. In SRRI #1 (60a), the SRR number of the open SRR #1 is recorded in its "open SRR list" block 52a. In SRRI #1 (6 0a), the "list of SRR items" block 3〇a has only one SRR item 35a related to SRR #1. SRR project 35a (or SRR projects 35b through 35p discussed later) may have the SRR project structure of Figure 5A or 6A discussed above. Figure 7D illustrates the invention in accordance with the present invention

The detailed structure of the "list" field, which is recorded in the SRRI header. The structure of this block shown in the Figure 7D map is applicable to the "open sr] list fields of the present invention, such as blocks 52 and 52a through 52f (discussed later). Store Ash The information in this field is used to identify the location of each open SRR. Use this field ¥ method to be described in more detail below. The number of the open SRR project is like the location of the open project. The δ has been recorded in SRRI's “Open SRR List”. That is, use the "Open SRR number to step on her from the horse" to identify the location of the open SRR project, where:

In this example, the total number of open SRRs allowed in a given threshold is up to sixteen. In this example, publicly available - one bit is placed in this block to store six different open numbers. . In order to realize the necessity of determining the light monument for a disc recognition device, when the disc is loaded, the position of the NWA value t recorded is recorded/played. The recording/playback device needs to know the location of the disc by taking any open SRR from the open SRR. However, since m can determine the recordable position of the disc c

To find out a special SRR for an open SRJ 29 1286315 or to close the SRR information, the present invention provides an "open SRR list" at the SRRI header and accesses the block, and obtains the open SRR by the SRR number. position. Once the open SRR number is identified, the corresponding SRR number entry can be accessed from the SRRI to obtain the correct location for the open SRR (i.e., by accessing the starting address in the start address of the SRR entry). In this way, the optical recording/playback device can more easily read and open the SRR project information.

According to the present invention, only the SRR whose SRR number is recorded in the "Open SRr List" field of the SRRI is considered to be an open SRR. If the open SRR is changed to a closed SRR, the SRR number of the changed SRR will be erased or removed from the Open SRR List. When a special open SRR is closed (such as responding to a close command), the application will be different and the SRR number of the Srr will be removed from the SRRI's Open SRRI List. Removing the SRR number of the SRR from the Open SRRI List indicates the closure of the corresponding SRR.

Fig. 8A illustrates a case where a sector close command is executed when the optical disk is in the state of Fig. 7B. As shown in Fig. 8A, the existing data record area is divided into an independent, closed SRR by the section close command, and a new section is generated. In other words, the complete recorded area in Figure 7 becomes a complete SRR. It then constitutes a complete section #1. The unrecorded area then becomes an invisible SRR #2, which in turn constitutes an empty section #2.

Fig. 8B illustrates a process of recording the state of the three-recorded disc, which is related to the state of the dead disc of the 8A_. As shown in Figure 8, a SRRI #2 (60 b) is already recognized; in TDMA0, it is located under the previously recorded SRRI #2 (60a) 30 1286315

4 P One position. Since the optical disk recording state of FIG. 8A is such that the entire optical disk has only one open SRR (SRR #2) and one closed SRR (SRR #1), the corresponding open SRR number (SRR#2) is recorded in SRRI # 2 (60b) in the "Open SRR List" field 52b. Furthermore, the information on the two SRR items (SRR #1 and SRR #2) is recorded in the "SRR item list" field 30b of SRRI #2 (60b), and becomes the SRR items 35b and 35c.

In Figure 8, a shaded portion has been used to indicate a closed SRR entry. Although not shown, it should be understood that in addition to the SRRI #2 (6Ob) record in TDMA0, other management information (such as the updated TDMA information) is also recorded in the corresponding cluster of TDMA0 ( Or in the recording unit).

Fig. 9A illustrates the state of the optical disk of Fig. 8A in which the case of the two open SRRs for a new record is retained. As shown in Fig. 9A, the newly reserved open SRR becomes an open, empty SRR #2 and an open, empty SRR #3, each having an appropriate NWA, such as the portion indicated by the bold arrow. The remaining area becomes an invisible (open) SRR #4. The section includes the complete section #1 and the section #2 that transitions from the empty section to the incomplete section.

Fig. 9B illustrates a process of recording the recording state of the optical disc, which is related to the state of the optical disc of Fig. 9A. As shown in Fig. 9B, another SRRI #3 (60c) is recorded in TDMA0 at the next position of the previously recorded SRRI #2 (60b). Because the optical disk recording status of Figure 9A is the case where there are three open SRRs (SRR #2, SRR #3, SRR #4) and one closed SRR (SRR #1) on the entire optical disk, the corresponding open SRR number (SRR # 2, SRR #3, SRR 31 1286315 I » #4) is recorded in 311111#3 (60 (〇 Open 31111 List) field 52 (: in. Again, all four SRR items (SRR #i to SRR The information on #4) is recorded in 31^1#3 (60〇 "5&11 Item List" field 3〇 (:, respectively, SRR items 35d to 35g. In Figure 9B, a shaded part has been used Instructed to close the srr project. Although not shown, it should be understood that except for the SRRI #3 (6 0c) record in TDMA, other management information (such as the updated TDMA information) is also the same. Recorded in the corresponding cluster (or recording unit) of TDMA0. Figure 10 illustrates the SRR (SRR #2) and the invisible SRR (when the data is recorded to the first empty when in the state of the optical disk of the 9th A). SRR #4) Therefore, the first empty SRR becomes open, partially recorded SRR #2; the invisible SRR becomes incomplete SRR #4, but the open, empty SRR #3 No. 10B illustrates a process of recording the recording state of the optical disc, which is related to the state of the optical disc of Fig. 10A. As shown in Fig. 10B, another SRRI #4 (60d) is recorded in TDMA0, located in the previous The next position of the recorded SRRI #3 (60c). Because the disc recording status of the 10th A picture has three open SRRs (SRR #2, SRR #3, SRR #4) and one closed SRR (on the entire optical disc). In the case of SRR #1), the corresponding open SRR number (SRR #2, SRR #3, SRR #4) is recorded in the "Open SRR List" field 52d of SRRI #4 (60d). The information on the four SRR items (SRR #1 to SRR #4) is recorded in the "SRR Item List" field 30d of SRRI #4 (60d), which becomes SRR items 35h to 35k respectively. 1286315 Noisy 1st Ο B In the middle, a shaded part has been used to indicate that the SRR item is closed. Although not shown, the library ## money, what should be learned is: except for the record of SRRI#4 (60d) in TDMAO, other than The management information (such as the updated TDMA information) is also recorded in the corresponding cluster of TDMA (or the record 7G). The number of SRR items is 〶 SRR put the first position and the case is the same as in FIG. 9B. However, as shown in Fig. 1, since the record in a specific open SRR has been executed, the LRA information in the open SRR project in which φ 丁 、 is performed and the record is executed is changed. Therefore, Τ ^ changes. The recordable NWA position outside the collar is also changed. The 11th icon shows the situation when a section is closed when the disc is in the state of the disc, ~T旰Extraordinary ~foot in the open SRR grass this extra can After recording the entire area of the recording area, send η β day] to stay two additional / 1 enemy SRR will be closed. When the whole pad is moved, as described above, the entire portion of the additional recordable area of the "s, K pad action" can be selectively padded. ... A or some of the above 'use of dummy data (such as, 〇,,) or a specific real ten (dummy pad data to perform the whole pad action.) 彳乍 for the whole. That is, the first The whole sway in Figure 11A is the same as that discussed in Figures 3D and 3E. Action 疋 Figure A does not. With the section close command, the existing data record area becomes - i iL, complete section, and all SRRs included in the complete section will become closed SRR. For example, in order to respond to the section shutdown command, a portion of each open SRR (such as a cluster after the LRA) is placed and the SRR is turned off. In this case, the LRA information recorded in the SRR item means the last recorded area on which the real user data is recorded.

1286315 4 I domain, and the part of the false data does not affect how to determine the location of the LRA. After execution of the shutdown command, a closed, partially recorded SRR #2; a closed, empty SRR #3; and the complete SRR #4 are generated, which in turn constitutes a re-reserved meta-region ###2. The remaining outermost (〇uterm〇st) sRR becomes an invisible (open) SRR #5, which then constitutes an empty section #3. The 11th B shows a process of recording the recording state of the optical disc, which is related to the state of the optical disc of Fig. 11A. As shown in the 11β map, another SRRI #5(6〇e) is recorded in TDMA0 at the next position of the previously recorded srri #4(6〇d). Because the disc recording status of Fig. 11A is an open SRR number (Srr #5) corresponding to the case where there is only one open SRR (SRR #5) and four closed SRR (SRR #1 to #4) on the entire optical disc. Recorded in SRRI #5 (60e) "Open SRR List" block 52e. Furthermore, the information on all five SRR items (SRR #1 to SRR #5) is recorded in SRRI #5(6〇e)'s "SRR Item List" block 3〇e, which becomes SRR items 35ih to 35p respectively. In Figure 1 1 B, a shaded portion has been used to indicate a closed SRR item. Although not shown, 'It should be understood that: in addition to the SRRI #5 (6 0e) record in TDMAO, other management information (such as the updated TDMA information) is also recorded in the corresponding TDMA () In the cluster (or record unit). The final position of the real user data is recorded in the LRA block of the corresponding S RR item by closing the command 'the dummy data in the case of SRR #2 and Srr #3'. Similarly, if the P-flag is stored in the status field of the SRR item discussed above, it can be recognized (rec〇gnize) to close the SRR system in such a way as to have a full pad. If the ρ·flag is not stored in the SRR item, the SRR of the SRR area after viewing the LRA determines whether the corresponding SRR is a full-pad SRR, that is, by checking the NWA at the SRR (in the LRA) Then) whether there is specific padding data to determine whether the corresponding SRR is a full pad SRR.

As seen in Figures 7 through 11, the SRRI is the information indicating the status of the disc recording. When loading the corresponding disc, the recording/playback device must check the latest SRRI (SRRI #5 in the above example) that was last recorded in the management area. Since only the latest SRRI can correctly indicate the status of the last recorded disc, the position of the additionally recorded SRR can be checked.

However, when the power is suddenly turned off while the disc is being used, or the disc is damaged, the latest SRRI read may be incorrect. At this point, the latest SRRI in the undamaged SRRI needs to be used to reconstruct the state of the last record. According to the present invention, when the SRR is about to be turned off, the SRR is padded in the entire pad motion, and even when the latest SRR! on the disc is in a damaged condition, the pad information can be used to reconstruct the disc. The status of the record. This will restore the latest SRRI and current recording status of the disc. Figures 12, 13A and 13B illustrate a recording method of a write-once optical disc according to the present invention. Even when the latest SRRI is donated, this method restores the latest SRRI of the disc and performs recording/playback using the state of the last record obtained from the latest SRRI. The SRRI4 is said to be damaged when the corresponding S R RI is judged to be a defective area and the information recorded by the 35 1286315 is unreliable. If the latest srri has been compromised, it means that the last recorded state of the disc cannot be obtained from the latest SRRI. Therefore, the recordable position of the disc cannot be known. In the worst case, you will not be able to continue using the disc itself.

The present invention provides a method of correctly recovering the last recorded state of a disc when the latest SRRI is damaged. In particular, Fig. 12 is a flow chart illustrating a method of restoring the last recording state of a write-once optical disc (e.g., a BD-WO) and performing a recording/playback operation on the optical disc according to an embodiment of the present invention. The optical disc contains the structure and SRRI structure of the optical disc as described above. Referring to Fig. 12, if the optical disc is loaded into an optical recording/playback apparatus as shown in Fig. 14, the latest SRRI recorded in the management area (e.g., TDMAO) will be read. Thereafter, it is checked whether the read SRRI is damaged (S10).

If the latest SRRI is not damaged, the state of the last record of the disc will be obtained from the latest SRRI (S21). Then, using this latest SRRI, only the recording operation is performed on the additional recordable area and/or only the playback operation is performed on the already recorded area (S22). Information on such areas is obtained from this latest SRRI. On the other hand, if the latest SRRI is found to have been damaged in step S10, the latest SRRI in the undamaged SRRI is determined (S3 1). The latest, undamaged SRRI is then read (S32). The damaged SRRI can be recovered using the latest, undamaged SRRI and the actual recorded state of the disc (S 3 3). Step S 3 3 is a non-essential step. The recording operation is performed on the additional recordable area and/or the playback action is performed only on the already recorded area 36 1286315 (S34). Information in these areas can be determined from the latest, undamaged SRRI or the actual recorded status of the disc. After the recording/playing step S 3 4, the state of the record is newly changed to be recorded in the management area to become a new SRRI.

Figs. 13A and 13B are diagrams showing an example of restoring the last recorded state when the latest SRRj (e.g., SRRI #5 in Fig. UB) is damaged in step S33 in Fig. 12. For the sake of understanding, the s R RI recording method in Figures 7A to 1 1 B is taken as an example of the description. As shown in Fig. 13A, if the SRRI is in a normal state, srri #5 (60e) becomes the latest SRRI of the disc. However, if SrRi #5 has been compromised, the recording/playback device reads the latest SRRI from the unbroken SRRI. In this example, sRRI #4 (60d) is the latest SRRI in undamaged srri#i to #4.

The state of the real record associated with step 6 in Figure 11A can be determined from SRRI #5 (60e), which is written as shown in Figure 11B. However, since SRRI #5(6〇e) has been damaged, the latest SRR information can be checked by the recording/playback device as SRRI #4 (60d). However, because SRRI #5 carries the last recorded status of the disc, the SRRI #4 does not necessarily carry this information. In order to restore the last recorded information of the disc in order to not use SRRI #5, it is necessary to compare the true final recorded state of SRRI #4 and the disc. This is done as described below. The recording/playing device checks the location of the open SRR and the associated LRA information from SRRI #4. In the example of Fig. 13A, three open 31111s can be determined from the "open SRR list" block 52d of SRRI #4 (60d) to 31111 37 1286315 • » #2, #3, #4. Then, by accessing the LRA blocks of the SRR items corresponding to these open SRRs from the SRRR #4 (60d) "SRR Item List" block 30d, LRAs can be obtained and used to verify whether the corresponding SRRs are genuine. For an open SRR. In this regard, only the open S RR identified by the SR 2 #60 (60d) block 5 2 d will be tested. It is not checked to close the location recorded by the SRR. Once an open SRR becomes a closed SRR, the closed SRR cannot be changed back to an open SRR. Therefore, the last SRR information can be recovered by checking whether each open SRR becomes a closed SRR. In the case where SRR #2 and SRR #3 are identified as the open SRR in the intercept 5 2d of SRRI #4 (60d), each of SRR #2 and SRR #3 will be checked to determine the predetermined whole pad. Whether the data (eg, false data) is recorded in its LRA (identified in the LRA field in the project), as seen from Figure 1 A (the true final disc recording status). If the entire pad is detected, the recording/playing device can determine that the corresponding open SRR has changed to a closed SRR.

In the case where SRR #4 is recognized as the open SRR from the intercept 52d of SRRI #4, the recording/playing device checks SRr #4 to determine whether there is full pad data after the LRA position in the u u map (real The last disc is recorded.) In the true last disc recording state, the sRR #4 can be analyzed as an open SRR. At the same time, it can be seen that the area after the lra position of SRR #4 is recordable, that is, the area is occupied. Then in the recording/playing device, the recorded area of the original SRR #4 is determined to be a closed SRR (new closed SRR #4), and only the recorded area of the original coffee #4 can be analyzed as Open SRR (new SRR #5). Therefore, the content of the damaged SRR #5 can be reconstructed by using the results of the above analysis. Furthermore, 'because the information required for the recording/playing device to perform the recording action is additional recordable position information (NWA), the NWA position associated with the old and new SRR #4 has not changed, so The recording/playback device is used. Fig. 13 is a diagram showing the result of restoring the latest SRRI #5 by the process diagram of Fig. 13A as described above. This result is consistent with the last recorded status of the real disc. Therefore, the recording/playing device records the newly restored SRRI #5 again selectively in the recording management area (at this time, such as SRRI #6 (60f)); or performs the recording operation only in the additional recordable area. . The SRRI #6 (60 f) includes the "open SRR list" block 52f, which identifies the SRR #5; and the "list of SRR items" field 30f, which respectively correspond to the SRR #1 to #5 SRR projects 35q to 35u. Meanwhile, even if the restored SRR #5 is not recorded as SRR #6, the recording of the data can be performed from the restored NWA information, and the recorded state of the restored NWA (changed by the data record) is recorded as a new SRRI # 6. Fig. 14 is a view showing a light disc recording/playing apparatus according to the present invention. This or other suitable device or system can be used to implement the structure of the optical disc and/or S R RI as well as the method of the present invention as discussed herein. Referring to FIG. 14 , the optical disc recording/playing device includes a recording/playing unit 10 for recording data on and/or reproducing data from the optical disc; and a controller 20 for controlling the recording. /Playback unit 1 〇. All components of the recording/playback device are effectively coupled. The controller 20 39 1286315 transmits a command to the recording/playing unit 1 记录 for recording a special recording area (such as an SRR/segment on a disc) and/or from a special recording area (eg: SRR/section on the disc) is reworked. The recording/playing unit 10 records data to and/or from the optical disc according to the command of the controller 20.

The recording/reproducing unit 10 includes an interface unit 12, a pickup-up unit 11, a data processor 13, a servo system 14, a memory unit 15, and a microcomputer 16. The interface unit 12 communicates with an external device such as the controller 20. The detector 11 directly records data to the disc or directly reproduces the data from the disc. The data processor 13 receives a reproduced signal from the detector 11; recovers a preferred signal; modulates a signal suitable for the optical disc; and transmits the signal. The servo system 14 controls the detector 11 to read a signal from the optical disc or to record a signal to the optical disc. The memory 15 temporarily stores data and various information (including the management information discussed herein). The microcomputer 16 controls the elements of the recording/playing unit 10. Since the recording/playback apparatus shown in Fig. 14 can selectively perform a whole pad action, a designer may be more free to design the recording/playing apparatus. The recording/playing device 10 can automatically store specific materials during the operation of the entire pad. The recording/playback method of the optical disc according to the present invention can be mainly divided into two parts. First, when in the case of Figures 4 to 6 C, the whole pad action is determined in the selected close SRR, and a message for identifying whether the pad action is performed will be recorded. Second, as in the case of Figs. 7A to 13B, the SRRI is effectively restored by checking the SRR to determine whether or not 40 1286315 has been recorded or not. The β-header can be recorded in the light. Check the closed mode. The SRR is not performed in the SRR. In other words, there is an option for having a whole pad in the SRR. However, according to the present invention, the case of closing the SRR in a full-pad manner is more advantageous for the restoration of data. The recording/method of an optical disc according to an embodiment of the present invention will now be described in detail. First, if the optical disc is loaded into the recording/playback device, it is recorded in the current management area of the optical disc and recorded as the latest optical disc management asset SRRI, and is read together with the SRR item of the SRRI, and the read information is temporarily The memory 3 stored in the recording/playback unit is the latest disc recording state recorded in the SRRI, and the open SRR is identifiable via the SRRI. The recorded or unrecorded status of the disc can be checked with the SRRI header information. It is also recognized if it has a full pad. This will be used in the recording/playback of the disc. For example, the microcomputer 16 can accurately check the SRR status in the presence disc from 811 so that it can be from the open srr recordable position (NWA) that has been checked. At the same time, it is possible to have a full pad as discussed above. If the SRR is turned off by the controller 2, the microcomputer 16 can choose to have a full pad or a full pad. At the same time, in order to respond to a special command of the controller 2, the SRR can be turned off in a full-pad manner. In the case where the SRR state is changed by the whole pad action, the P-flag of the corresponding item is modified and recorded so that other records/players can use this information. This function is called the recording/playback unit "automatic padding function". This feature is helpful because it reduces the time required for the entire pad. Root 41 1286315 According to the present invention, by defining the type of SRR and providing a method of recording SRR and srri, a recording/playback apparatus having a desired performance can be designed in different ways.

Another recording/playing method according to the present invention is described herein. First, if the optical disc is already loaded in the recording/playing device, the controller 2 controls the detector 1 1 to read out the latest SRRI recorded in the TDMA, and confirms whether the latest SR RI is affected by damage. If the latest s r r has been compromised, the latest SRRI will be restored for the damaged SRRI, as described in Figures 1, 2, 3A and 1 3B. When the open SRR transitions to the off SRR, the latest SRRI can be recovered by examining the dummy data that is placed on the disc. If the latest SRRI is not damaged, the recording/playing unit 1 performs a recording action by checking the position of the additional recordable open SRR. After: If a closed command is received from the controller 20, in order to close (10) the 'recorded' playback unit 10 performs a full pad action in the entire area of the additional recordable two remaining in the open SRR. Even with each recording/playback device

^^ corresponds to the disc' and the latest SRRI is also damaged, or the last recorded state of the disc. Apparently, it is obvious to those skilled in the art that the skilled artisan can implement the invention. Therefore, it is intended that the invention includes the modifications and variations of the equivalents and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS The following drawings are provided to provide a further understanding of the present invention, which is incorporated in and constitutes a part of the application, the Wherein: Fig. 1 is a view showing the structure of a write-once optical disc according to the present invention. Figs. 2A to 2D are diagrams showing different open SRR types of a write-once optical disc according to the present invention in Fig. 1.

Figures 3A through 3E illustrate different closed SRR types of a write-once optical disc in accordance with the present invention in Figure 1. 4A through 4G are diagrams showing an example of a process of generating SRRs or segments of a write-once optical disc of Figs. 1 to 3E, in accordance with an embodiment of the present invention. Fig. 5A is a diagram showing an example of a structure of an SRR item according to a first embodiment of the present invention. Figs. 5B and 5C are diagrams showing an example of the structure of the SRR item according to the first embodiment of the present invention in Fig. 5A.

Fig. 6 is a diagram showing an example of a structure of an SRR item according to a second embodiment of the present invention. Figs. 6B and 6C are diagrams showing an example of the structure of the SRR project according to the second embodiment of the present invention in Fig. 6A. . Figs. 7 to 1B are diagrams showing an example of recording SRRI depending on a disc recording state in the write-once optical disc according to the present invention in Fig. 1. Fig. 12 is a flow chart showing a method of using SRRI of a write-once optical disc when the latest SRRI is damaged according to an embodiment of the present invention. 43 1286315 The first 3 A and 1 3 B diagrams illustrate a method of restoring the latest SRRI to the write-once optical disc in accordance with an embodiment of the present invention. Fig. 14 is a view showing a recording/playing apparatus for a write-once optical disc according to an embodiment of the present invention. [Main component symbol description]

10 Recording/playback unit 11 Detector 12 Interface unit 13 Data processor 14 Servo system 15 Memory 16 Microcomputer 20 Main unit or control unit 44

Claims (1)

1286315 X. Patent Application Range: 1 · A method for managing a recording medium comprising at least one continuous recording range (SRR), the method comprising the steps of: recording an open SRR information on the recording medium, the open SRR information carrying any An identification of the open SRR, wherein the number of open SRRs allowed is at most a predetermined number; and when certain SRRs are turned off, the identification information of the certain SRRs is removed from the open SRR information. 2. The method of claim 1, further comprising the step of: padding at least a portion of the SRRs with a first data when the certain SRRs are turned off. 3. The method of claim 1, further comprising the steps of: recording a full pad status information on the recording medium, the recording status information indicating whether at least a portion of the certain SRR is fully padded . φ 4. The method of claim 3, wherein the portion of the SRR is at least one recording unit. 5. The method of claim 4, wherein the portion of the SRR is from a last writable position after a last recorded position of the SRR (next 45) 1286, 315 writable position). 6. The method of claim 2, wherein the first data is dummy data, zero (zero), or specific real data. 7. The method of claim 1, wherein in the open SRR information, the identification information of an open SRR is an SRR number. 8. The method of claim 1, wherein the recording step comprises the steps of: recording a session start information on the recording medium, the section start information indication Whether some of the SRRs are a start of a segment. 9. The method of claim 1, further comprising the steps of: recording a sequential recording range information (SRRI) on the recording medium, the SRRI system and one or more SRRs And identifying a recording status of the recording medium, wherein the open SRR information is part of the SRRI. 10. The method of claim 9, wherein the SRRI is recorded in a temporary disc management area (temporary disc 46 1286.315 management area) on the recording medium. 11. As described in claim 1 The method wherein the predetermined number is 16. 1 2. The method of claim 1, wherein the certain SRRs do not have a writeable address once the certain SRRs are turned off. 13. The method of claim 1, wherein each of the at least one SRR is one of a reserved SRR and a non-reserved SRR, and the reserved SRR has both a start address and an end address. The non-reserved SRR has a start address but no end address, wherein the non-reserved SRR is one of a recorded, non-reserved SRR, or an empty, non-reserved SRR, and the certain SRR is not the same. Empty, non-reserved SRR. 14. The method of claim 2, wherein the certain SRR has a last recorded address, the last recorded address indicating a last location of the user record recorded in the certain SRR, The user profile does not include the first profile. 15. A method of managing a recording medium comprising at least one continuous recording range (SRR), the method comprising the steps of: 47 1286315 when closing certain SRRs, padding at least a portion of the certain open SRRs with the entire pad data And recording a whole pad status information related to the certain SRRs on the recording medium, the whole pad status information indicating whether a part of the certain SRRs is padded. The method of claim 15, wherein in the whole pad step, the portion of the SRR that is covered by the whole pad is at least one recording unit, and the recording unit is from the next one of the certain SRRs. The area to be written starts. 17. The method of claim 15, wherein in the whole pad step, the portion of the SRR that is overlying the pad is a first cluster immediately adjacent to a last recorded area of the certain SRR. 18. The method of claim 15, wherein the whole pad data is zero (zero) in the whole pad step. The method of claim 15, further comprising the step of: removing the SRR number associated with the certain SRRs from the list of open srrs once the certain SRRs are closed. 2 0 - a recording medium comprising: at least one continuous recording range (SRR) located on the recording medium; and 48 1286315 an open SRR information on the recording medium, the open SRR information carrying an identification of any open SRR Information, wherein the number of open SRRs allowed is at most a predetermined number, and once the specific SRR is turned off, an identification information of the certain SRRs is removed from the open SRR information. The recording medium of claim 20, wherein when the certain SRRs are turned off, at least a portion of the certain SRRs are padded with a first material. 22. The recording medium of claim 20, further comprising: a whole pad status information on the recording medium, the whole pad status information indicating whether at least a portion of the certain SRRs are holistic. The recording medium of claim 22, wherein the portion of the SRR is at least one recording unit from a last writable position after a last recording position of the certain SRRs. . 2 4. The recording medium of claim 21, wherein the first data is a fake material, zero, or specific real data. 2 5 . The recording medium of claim 20, wherein in the open SRR information, the identification information of an open SRR is an SRR number. 49 1286315 2 6. The recording medium of claim 20, further comprising: a segment start information on the recording medium, the segment start information indicating whether the certain SRR is a segment The beginning of a. 2. The recording medium of claim 20, further comprising: a continuous record range information (SRRI) located on the record medium, the SRRI being related to one or more SRRs, and identifying the record A recorded state of the media, wherein the open SRR is part of the SRRI. 2. The recording medium of claim 27, further comprising: a temporary disc management area in which the SRRI is recorded. 2 9. The recording medium of claim 20, wherein the predetermined number is 16. 3. The recording medium of claim 20, wherein the certain 311 feet do not have a writeable address once the certain SRR is turned off. The recording medium of claim 20, wherein each of the at least one SRR is one of a reserved SRR and a non-reserved SRR, the reserved SRR having a start address and an end Address, the non-guaranteed 50 1286315 SRR has a start address but no end address, wherein the non-reserved SRR is one of a recorded, non-reserved SRR, or an empty, non-reserved SRR, and the Some SRRs are not empty, non-reserved SRRs. 3. The recording medium of claim 21, wherein the certain SRR has a last recorded address indicating the last position of the certain SRRs recorded by the user profile. The user profile does not include the first profile. 33. A recording medium comprising: at least one continuous recording range on a recording medium, wherein when a specific SRR is turned off, at least a portion of the certain open SRR is padded with the entire pad data; a whole pad status information related to the certain SRRs located on the recording medium, the whole pad status information is whether a part of the certain SRRs is completely padded. 3. As claimed in claim 3, item 3 The recording medium, wherein the portion of the certain SRR that has been padded is an at least one recording unit that starts from a next writable area of the certain SRR. 3. The recording medium of claim 3, wherein the portion of the 51 1286315 SRR that is overlaid is a first town immediately adjacent to a last recorded area of the certain SRR. 3. The recording medium of claim 3, wherein the whole pad data is zero. 3. The recording medium of claim 3, wherein once the certain SRR is turned off, an SRR number associated with the certain SRRs is removed from the list of open SRRs. The recording medium comprises: at least one continuous recording range (SRR) located on the recording medium; and an open SRR information located on the recording medium, the open SRR information identifying an SRR of an open SRR on the recording medium a number, wherein when a specific SRR is turned off, at least a part of the certain SRRs may be falsified by a dummy data; and φ is a whole pad status information on the recording medium, and the whole pad status information indicates a part of the certain SRR Whether the share is overwritten, and once a specific SRR is turned off, an SRR number of some SRRs will be removed from the open SRR information. 3 9 . The recording medium of claim 3, wherein the total number of open SRRs allowed is at most a predetermined number of 52 1286315 for a given period of time. 40. The recording medium of claim 3, wherein the false information is zero. 4 1. A device for managing a recording medium comprising at least one continuous recording range (S R R), comprising: a recording/reproduction portion for recording an open SRR information on the recording medium, the open SRR information carrying an identification of any open SRR, wherein the total number of open SRRs allowed is at most a predetermined number And, once some SRRs are turned off, the record/reproduction portion removes an identification information of the certain SRRs from the open SRR information. 42. An apparatus for managing a recording medium comprising at least one continuous recording range (SRR), comprising: a recording/reproduction portion for padding the certain pad data when the specific SRR is turned off At least a portion of the open SRR; and for recording a full pad status information related to the certain SRRs on the recording medium, the full pad status information indicating whether the certain SRRs are overwritten. 43. A device for managing a record comprising at least one continuous record range (SRR) 53 1286315 media 'includes: a record/reproduction portion for recording a continuous record range (SR RI) on the record medium, The SRRI is related to an SRR on one or more recording media and identifies a recording state of the recording medium, wherein the SRRI includes: a list of open SRRs including open SRR numbers; the number of open SRRs allowed, the number of which At most a predetermined number; and the recording/reproduction portion, when a particular SRR is turned off, removes an SRR number of the certain SRR from the list of open SRRs. 54 1286315 VII. Designation of Representative Representatives (1) The representative representative of this case is: (14). (2) The representative symbols of the representative diagrams are briefly described as follows: 10 Recording/playback unit 11 Detector 12 Interface unit 13 Data processor 14 Servo system 15 Memory 16 Microcomputer 20 Host or control unit 8. If there is a chemical formula in this case, please reveal the chemical formula that best shows the characteristics of the invention: None 4