CN1823373A

CN1823373A - Write-once optical disc, method and apparatus for recording management information on write-once optical disc

Info

Publication number: CN1823373A
Application number: CNA2004800205152A
Authority: CN
Inventors: 朴容彻
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2003-07-14
Filing date: 2004-07-09
Publication date: 2006-08-23
Anticipated expiration: 2024-07-09
Also published as: CN101521035A; KR20050008141A; CN101521035B; CN100535996C

Abstract

A write-once optical disc, and a method and apparatus for recording management information on the write-once optical disc, are provided. The optical disc includes at least one recording layer, and at least one SRR entry. Each SRR entry corresponds to an SRR and includes at least one status field for indicating a recording status of the corresponding SRR. The status field includes a session start flag for indicating whether the corresponding SRR is a start of a session, the session being formed by a group of the SRRs. Each SRR entry further includes a start address field indicating where the corresponding SRR starts, and a last address field indicating the last recorded address of the corresponding SRR.

Description

CD-WORM, on CD-WORM the method and apparatus of records management information

Technical field

The present invention relates to CD-WORM, and the method and apparatus that is used for records management information on this CD-WORM.

Background technology

As a kind of optical record medium, the CD that can write down high capacity data just is widely used.In these CDs, developed for example novel high-density optical record medium (HD-DVD) of blue light (Blu-ray) CD and so on recently, be used for long record and storage high-definition video data and high quality audio data.Blu-ray Disc is HD-DVD technology of future generation and optical recording solution of future generation, and compares with existing DVD, and it has the capacity of fabulous storage data.Recently, formulated the international standard technical specification of HD-DVD.

Relevant therewith, following to rewrite Blu-ray Disc (BD-RE) standard, formulating the various standards of write-once Blu-ray Disc (BD-WO).

In these write-once Blu-ray Disc (BD-WO) standards, the management information recording method is discussed especially.This method comprises: write down method about the information of the recording status of dish according to the characteristic of CD-WORM.The information of recording status about dish is referred to herein as recording status information or dish recording status information.

The user mode of recording status information representative dish, but and allow main frame or user easily to find posting field on the CD-WORM.For the traditional CD-WORM such as CD and DVD, be meant about the information of coiling recording status: for CD is magnetic track information, is RZone (Zone R territory) or fragment (fragment) for DVD.

Fig. 1 is the synoptic diagram that illustration has the recording status information of technology DVD-R dish.

With reference to figure 1, the management information of DVD-R is recorded in record management data (RMD) zone.Specifically, the RMD field 4 one 12 in use RMD zone is managed the recording status information of DVD-R.There are open RZone, sightless RZone and the RZone that closes.

For RZone information,, comes extraly data recording when dish is gone up by main frame when but requiring extra record position, driver is confirmed the LRA (last posting field) of the RZone of RZone that first is open and second opening, and usually with position " LRA+1 " but send main frame to as extra record position.

Yet,, therefore, provide the classic method of management information can not reasonably apply to BD-WO because above-mentioned traditional DVD-R is different with write-once Blu-ray Disc (BD-WO) on physical arrangement and environment.Under the situation of BD-WO, driver management disc defect is used for driver and comes managing defect but require BD-WO to have special additional areas.Thereby, the dish complex structure of BD-WO, the result causes the method for the recording status of management DVD-R can not be used for BD-WO.

Therefore, need the method for the recording status of the high density CD-WORM of a kind of management such as BD-WO, make and easily to visit and use dish more effectively.And this management information should be configured to guarantee one-piece construction, use and the operating such with BD-WO.

Summary of the invention

Therefore, the present invention is directed to a kind of CD-WORM and be used for management information is recorded in method and apparatus on the CD-WORM, fully eliminated because the limitation of prior art and one or more problems that shortcoming causes.

An object of the present invention is to provide a kind of CD-WORM such as BD-WO that has recording status information on it, and the method and apparatus that is used for writing down effectively and managing this recording status information.

It is that CD-WORM defines new journal scope (SRR) type that another object of the present invention provides a kind of, and with the technology of new SRR class record in SRR information (SRRI).

The part of other advantage of the present invention, purpose and feature will provide in the following description, and a part will be by it will be apparent to those skilled in the art that to the check of following content or by practice of the present invention is become.Purpose of the present invention and other advantage can realize by the structure that particularly points out in the instructions of being write and claims and accompanying drawing and obtain.

In order to realize these purposes and other advantage, and according to purpose of the present invention, as described in imbody and extension here, provide a kind of recording medium, comprising: at least one recording layer; And at least one SRR clauses and subclauses, each SRR clauses and subclauses is corresponding to a SRR and comprise at least one mode field of the recording status that is used to indicate this corresponding SRR, described at least one mode field comprises and is used to indicate whether corresponding SRR is the session beginning label that a session begins,

Description of drawings

Be contained in this and be used to provide accompanying drawing example further understanding of the present invention, that be incorporated into this part that also constitutes the application is illustrated embodiments of the invention, and explain principle of the present invention together with the description.In the accompanying drawing:

Fig. 1 is the synoptic diagram that illustration has the management information of technology DVD-R disc recording;

Fig. 2 A to 2D example illustrates the different open SRR type according to CD-WORM of the present invention;

Fig. 3 A to 3E example illustrates the different SRR types of closing according to CD-WORM of the present invention;

Fig. 4 A to 4G example illustrates the example according to the process of the record SRR of CD-WORM of the present invention and session (session);

Fig. 5 example illustrates according to the structure of CD-WORM of the present invention and is used for management information is recorded in method on this CD-WORM;

Fig. 6 example illustrates according to the SRR clauses and subclauses on the be recorded in CD-WORM of the first embodiment of the present invention;

The routine respectively SRR entry structure that Fig. 6 is shown of Fig. 7 A and 7B is applied to the situation of Fig. 4 F and 4G;

Fig. 8 example illustrates the SRR clauses and subclauses on the be recorded in CD-WORM according to a second embodiment of the present invention;

The routine respectively SRR entry structure that Fig. 8 is shown of Fig. 9 A and 9B is applied to the situation of Fig. 4 F and 4G;

Figure 10 example illustrates the SRR clauses and subclauses on the be recorded in CD-WORM of a third embodiment in accordance with the invention;

The routine respectively SRR entry structure that Figure 10 is shown of Figure 11 A and 11B is applied to the situation of Fig. 4 F and 4G;

Figure 12 example illustrates the SRR clauses and subclauses on the be recorded in CD-WORM of a fourth embodiment in accordance with the invention;

The routine respectively SRR entry structure that Figure 12 is shown of Figure 13 A and 13B is applied to the situation of Fig. 4 F and 4G;

Figure 14 example illustrates the SRR clauses and subclauses on the be recorded in CD-WORM according to a fifth embodiment of the invention;

The routine respectively SRR entry structure that Figure 14 is shown of Figure 15 A and 15B is applied to the situation of Fig. 4 F and 4G;

Figure 16 example illustrates the method according to the SRR information on the renewal CD-WORM of the present invention;

Figure 17 example illustrates according to optical data recording/reproducing device of the present invention.

Embodiment

Now will be in detail with reference to preferred embodiment of the present invention, its example example illustrates in the accompanying drawing.In the case of any possible, running through accompanying drawing uses identical reference number to refer to identical or similar parts.For the convenience of describing, will be that example is described with write-once Blu-ray Disc (BD-WO).

In this manual, the possible general general term of term employing of the present invention.Yet under specific situation, term is selected arbitrarily by the inventor.In such cases and since in the description of correspondence specific definition the implication of these terms, therefore, be appreciated that if in instructions, limit, just should understand the present invention with the implication of the definition of these terms.According to the present invention, form in the CD-WORM or reserve a plurality of zones, make available detailed information write down these zones.In these special posting fields each all is called as journal scope (SRR).Information (recording status information or dish recording status information) about the recording status of the CD-WORM such as BD-WO is called as SRR information (SRRI), is similar to the use of the term " journal " in the BD sequential recordng mode." filling " meaning (padding) is in response to user's request or according to the judgement of recoding/reproduction unit (unit 10 for example shown in Figure 17), and the padding data of dummy data (dummy data), null value or certain other appointment is recorded in not record or dummy section among the SRR that closes." session " is according to reproducing standard, being used to divide the adopted name of a plurality of SRR for the purpose of compatibility (session).A session comprises at least one SRR.

The present invention has defined the recording status that dissimilar SRR indicates each SRR in the CD-WORM such as BD-WO definitely, and provide a kind of be used for this CD-WORM, allow with for existing dish structure with use compatible fully mode that this status information is recorded in structure on the dish.

＜SRR type and conversation type 〉

SRR is the zone of reserving on the CD-WORM such as BD-WO for data or information are recorded in.The present invention defines the type of SRR according to necessity and/or record progress.Various SRR types and being described in detail as follows with reference to figure 2A to 4G of conversation type by the present invention's definition provide.

Fig. 2 A to 2D example illustrates the different open SRR type that is used for the SRR of the CD-WORM such as BD-WO according to of the present invention.Open SRR is meant that its zone is recordable SRR." recordable " is meant the address (NWA) that has the next one and can write.Therefore, opening SRR is the SRR with NWA.There is not the SRR that can not write down of NWA to close SRR.Closing the SRR type will describe with reference to figure 3A to 3E after a while.

More specifically, Fig. 2 A example illustrates first the open SRR that is defined as sightless SRR by the inventor.This sightless SRR is formed in the SRR in the outmost turns orbital region of the blank panel that is not recorded or dish.This SRR has only start address, and does not have end address (being the not ending of its zone).Because invisible SRR does not have record, so its LRA has null value, its NWA has the value identical with the start address of this sightless SRR.

Fig. 2 B example illustrates second the open SRR that is defined as incomplete SRR by the inventor.This incomplete SRR is the SRR from the sightless SRR state partial record shown in Fig. 2 A.In other words, the incomplete SRR that is known as of the invisible SRR with certain imperfect record.Incomplete SRR has start address, but does not have the end address.Because this SRR is imperfect record, therefore, its LRA is the address of the rearmost position of normal data record, and its NWA is the information corresponding to the next position of LRA.

Fig. 2 C example illustrates the 3rd the open SRR that is defined as sky SRR by the inventor.This sky SRR is the SRR that generally is formed on the zone line of dish, but not is formed on the outmost turns track of dish.When main frame or user form an open SRR with record, but also any data recording during to this open SRR, is produced this sky SRR.Empty SRR has start address and end address, but also is not recorded.As a result, the LRA of empty SRR has null value, and NWA has the value identical with the start address of this empty SRR.

Fig. 2 D example illustrates the 4th the open SRR that is defined as the SRR of partial record by the inventor.The SRR of this partial record is that the SRR of the sky in Fig. 2 C forms during by the partial record data.Therefore, this SRR has start address and end address.Because this SRR is by partial record, so the LRA of the SRR of this partial record is the rearmost position of normal data record, and the NWA of the SRR of this partial record is the information corresponding to the next position of LRA.

In general, the traditional Write-once disc such as DVD-R only has the RZone of two openings.On the contrary, the CD-WORM such as BD-WO according to the present invention does not have the open SRR of this limited smallest number.But, the sum of the open SRR among the BD-WO or not limited, or be restricted to 16, feasible more effectively use dish.Therefore, the present invention also provides the method for the different records management information of a kind of with traditional recording method.

Fig. 3 A to 3E example illustrates the different SRR types of closing according to the CD-WORM such as BD-WO of the present invention.Close SRR be meant have can not posting field SRR." can not write down " and be meant the address (NWA) that does not have the next one and can write.Closing SRR can be retained, because its zone is closed for record.Even but posting field still is present among the SRR, owing to shutdown command from main frame or user, can forced closing SRR.

Fig. 3 A example illustrates first that be defined as sky SRR by the inventor and closes SRR.This sky SRR is the SRR that does not close owing to receive shutdown command in the empty SRR of the opening shown in Fig. 2 C with not having any record.

Fig. 3 B example illustrates second of SRR who is defined as partial record by the inventor and closes SRR.The SRR of this partial record is owing to receive the SRR that shutdown command is closed in the SRR of the partial record shown in Fig. 2 D.

Fig. 3 C example illustrates and is defined as the 3rd of complete SRR by the inventor and closes SRR.This complete S RR is the SRR that records its regional end position with normal user data fully.Complete SRR only exists when SRR closes.

Fig. 3 D example illustrates the 4th SRR that is defined as the complete SRR of another kind by the inventor.This complete SRR is that the zone that can write down (also record) in all of the SRR of the partial record of the opening shown in Fig. 2 D is filled specific dummy data or null value and closes the back subsequently and forms.

Fig. 3 E example illustrates the 5th SRR that is defined as the complete SRR of another kind by the inventor.This complete SRR is that the zone that can write down (also record) in all of the empty SRR of opening shown in Fig. 2 C is filled specific dummy data or null value and closes the back subsequently and forms.

As from Fig. 3 A to 3E as seen, in the present invention, the type of SRR is not close (Fig. 3 A and 3B) with having any filling or change at open SRR to fill back (Fig. 3 D and 3E) when closing SRR and close to determine according to posting field not.

In general, according to the present invention, three types session is arranged.The null session that first conversation type is made up of invisible SRR.Second conversation type is to have at least one open SRR but the incomplete session of not having invisible SRR.The 3rd conversation type is by closing the complete session that SRR forms.Session has at least one SRR.Incomplete session is owing to for example session shutdown command is changed into complete session.

Fig. 4 A to 4G illustrates the step that keeps or distribute the method for SRR and session according to of the present invention in the dish such as BD-WO with the example example.Arrow indicates NWA.

Specifically,, in first step, provide the CD-WORM of the sky such as BD-WO with reference to figure 4A, but its whole zone record.Shown in state in, the dish only have a SRR, be the invisible SRR shown in Fig. 2 A, and the dish NWA be the dish start address.Therefore, dish only has a session, is called null session.

With reference to figure 4B, in second step, blank panel is by partial record, but its session is not closed.Under this state, dish only has a SRR, and this SRR is the incomplete SRR shown in Fig. 2 B.Therefore, dish only has a session, is called incomplete session.

With reference to figure 4C, in third step, because shutdown command, the previous session of dish is closed and is become the complete session #1 with complete SRR#1.Then, prepare new session as null session, its not posting field be invisible SRR shown in Fig. 2 A.

With reference to figure 4D, in the 4th step, reserve two open SRR and be used for new record.Therefore, except complete session #1, dish has the SRR of the sky of two new openings, and the session of previous sky changes over incomplete session.

With reference to figure 4E, in the 5th step, data recording is to the SRR of the sky of first opening of Fig. 4 D and on the invisible SRR of Fig. 4 D.Therefore, first empty SRR changes over the SRR of open partial record, and sightless SRR changes over incomplete SRR.As a result, dish still has complete session #1 and incomplete session.

Fig. 4 F and Fig. 4 G show two possible steps, and each step all may be followed after the step of Fig. 4 E.In Fig. 4 F, receive and handle the session shutdown command to close session with not filling any not posting field.As a result, the complete session that the posting field in the incomplete session of Fig. 4 E is independently new owing to the session shutdown command becomes, all SRR in this session become and close SRR.In other words, the complete session #2 that is retained on the dish comprises the SRR#2 of the partial record of closing, the empty SRR#3 that closes and the complete SRR#4 that closes.Remaining outmost SRR is open invisible SRR#5, and it is the part of null session #3.

Alternatively, in Fig. 4 G, receive and processing session shutdown command, do not close session posting field not fill.Because the session shutdown command, so posting field becomes independently complete session #2, wherein all SRR in this session change over and close SRR.In other words, as the result who carries out padding, three types complete SRR#2, #3 and #4 have been kept on the dish, as the part of complete session #2.Complete SRR#2 is that the SRR of partial record of the opening of Fig. 4 E changes over after filling and closes SRR.Complete SRR#3 is that the empty SRR of the opening of Fig. 4 E changes over after filling and closes SRR.Complete SRR#4 is the SRR that closes that has wherein normally write down actual user data.Remaining outmost SRR is the invisible SRR#5 as the opening of the part of null session #3.

As seen, can keep dissimilar SRR according to whether having to fill from Fig. 4 F and 4G.Therefore,, the invention provides the SRRI structure of innovation and the method for record SRRI, therefore can accurately distinguish the SRR type of these definition in order to represent the detailed dish recording status of dish.

＜compact disk structure and SRRI structure 〉

Fig. 5 example illustrates the structure and the method that is used for indicator management information according to the CD-WORM such as BD-WO of the present invention.As example, dish shown in Figure 5 has single recording layer.But the present invention is not limited thereto, but applicable to the dish with bilayer or several record layers.

With reference to figure 5, dish comprises to be introduced zone, data area and draws the zone, and all these zones all are positioned at recording layer.Introduce the zone and draw the zone and have a plurality of defect managements (DMA 1-DMA 4), be used for repeatedly storing identical defect management information.In the data area, the inner spare area ISAO and/or the outside spare area OSAO that are used to replace defective zone are provided.

Known CD-RW does not have or does not need big defect management (DMA), because its DMA can repeatedly be write and wipe, also is like this even dish has the DMA of limited size.For really not so for the CD-WORM the BD-WO.Since CD-WORM can not be on the zone that once was recorded record again, so CD-WORM needs and has a bigger management area.For management information more effectively, in CD-WORM, management information temporarily is stored in the temporary defect management area territory (TDMA).When dish is ready to finally finish, is stored in management information among the TDMA and just transfers to and be used for more permanent storage among the DMA.

As shown in Figure 5, there is two types TDMA.One is to distribute to the main TDMA (PTDMAO) that introduces the zone and have fixing immutable size.Another is the extra TDMA (ATDMAO) that distributes to outside spare area OSAO and have the size that changes according to the size of spare area.For example, the big or small P of ATDMAO is P=(N * 256)/4, and preferably whole outside spare area OSAO size 1/4th.

In each of PTDMAO and ATDMAO, temporary defect list (TDFL) information and temporary disk (T-disk) definition structure (TDDS) information are recorded in the record cell (for example being bunch (cluster) under the situation of BD-WO).Perhaps, in each of PTDMAO and ATDMAO, (TDFL+TDDS) information or (SRRI and TDDS) information can be recorded in another record cell.

According to the size of defect area list, TDFL information is formed by 1-4 bunch.The a certain specific region (SRR) of SRR message identification dish is that write down or Unrecorded.Especially, when with continuous recording method indicator, can use SRR information.In last sector in 32 sectors of TDDS information stores in one bunch.TDDS information comprises about the total disk management and the important information of defect management.No matter when upgraded management information among the TDMA, the generally always last record of TDDS information.

According to the present invention, each among a plurality of SRRI 60 comprises three parts: be used to discern the head 50 of SRRI, the SRR tabulation terminal symbol 40 that comprises the tabulation (SRR item list) 30 of the SRR clauses and subclauses of SRR type information and be used to identify the end of corresponding SRRI.

SRRI head 50 is positioned at the front portion of corresponding SRRI 60, and comprises " SRRI structural identifier " field 51 of being used for discerning corresponding SRRI, is used to identify " open SRR tabulation " field 52, " open SRR number " field 54 that " SRR entry number " field 53 and being used to that is used to identify the sum of all SRR identifies the quantity of open SRR of position of each open SRR of this corresponding SRRI.By visit SRRI head 50, need not directly visit SRR item list 30, just can know the cardinal principle content of whole SRRI 60.Therefore, just may any new SRR type of redetermination or other necessary information, and this information is inserted in the head 50.

SRR item list (" tabulations of SRR clauses and subclauses ") 30 is recorded in after the SRRI head 50.When SRR item list 30 finished, the end of SRR item list 30 was identified by the SRR terminal symbol (" SRR tabulate terminal symbol ") 50 of tabulating.Specifically, SRR tabulation terminal symbol 50 is the information of the end of the SRR information of sign correspondence when SRR information has variable-size.

Therefore, as management information, SRR information comprises head, SRR item list and SRR tabulation terminal symbol.This information is recorded among the TDMA, and is updated as required.SRR item list 30 is listed a plurality of SRR clauses and subclauses 35.Each SRR clauses and subclauses 35 is assigned 8 bytes, and SRR clauses and subclauses 35 representatives are about being retained in the information of a SRR on the dish.

Each SRR clauses and subclauses 35 comprises the recording status information (SRR type information) (31) that is used for corresponding SRR, last recording address (LRA) information (34) that is used for the initial address message (IAM) (32) of corresponding SRR and is used for corresponding SRR.The SRR type information uses as identifies together with the various SRR types that the present invention that Fig. 2 A to 3E is discussed defines the SRR type of SRR.

＜SRR entry structure 〉

Fig. 6 example illustrates the example according to the SRR clauses and subclauses 35 of the first embodiment of the present invention.As shown in Figure 6, each SRR clauses and subclauses 35 comprises " state " field 31, " start address " field 32, " reservation " field 33 and " LRA " field 34 that is used to store 4 SRR type informations.

The suitable SRR type information that is used for corresponding SRR is recorded in mode field 31, thereby by Access status field 31, can learn the recording status of SRR.Specifically, in mode field 31, can represent any in above-mentioned 9 different SRR types being discussed together with Fig. 2 A to 3E.In this regard, the complete SRR with filling shown in Fig. 3 D and 3E is grouped in together as a type.

As example, if mode field 31 values are " 0000b ", the corresponding SRR of this expression is open invisible SRR, shown in Fig. 2 A.If mode field 31 values are " 0001b ", the corresponding SRR of this expression is open incomplete SRR, shown in Fig. 2 B.If mode field 31 values are " 0010b ", the corresponding SRR of this expression is open empty SRR, shown in Fig. 2 C.If mode field 31 value is " 0011b ", the corresponding SRR of this expression is the SRR of open partial record, shown in Fig. 2 D.If mode field 31 values are " 0100b ", the corresponding SRR of this expression is the empty SRR that closes, as shown in Figure 3A.If mode field 31 value is " 0101b ", the corresponding SRR of this expression is the SRR of the partial record of closing, shown in Fig. 3 B.If mode field 31 value is " 0110b ", the corresponding SRR of this expression is the complete SRR that closes that fills with dummy data of posting field not, shown in Fig. 3 D and 3E.If mode field 31 values are " 0111b ", the corresponding SRR of this expression is the complete SRR that closes that does not have any filling, shown in Fig. 3 C.

The size of origing address field (OAF) 32 is 28, is used to write down the initial address message (IAM) of corresponding SRR, i.e. the address of the reference position of SRR.In general, this is expressed as physical sector number (PSN).

The size of reserved field 33 is 4, is preserved for standard and changes.

The size of LRA field 34 is 28, is used to write down the address information (LRA) of the last record of corresponding SRR.This field has the information about the rearmost position that is recorded in the user data (except padding data) among the SRR.

Fig. 7 A and 7B example respectively illustrate the recording status that can how to use defined SRR type information among Fig. 6 to come each SRR shown in index map 4F (not filling) and Fig. 4 G (filling).

With reference to figure 7A, SRR#1 is the complete SRR that does not have filling, and its state is indicated by " 0111b " in the mode field 31.SRR#2 is the SRR that does not have the partial record of closing of filling, and its state is indicated by " 0101b " in the mode field 31.SRR#3 is the empty SRR that closes that does not have filling, and its state is indicated by " 0100b " in the mode field 31.SRR#4 is the complete SRR that does not have filling, and its state is indicated by " 0111b " in the mode field 31.SRR#5 is invisible SRR, and its state is indicated by " 0000b " in the mode field 31.

On the other hand, with reference to figure 7B, SRR#1 is the complete SRR that does not have filling, and its state is indicated by " 0111b " in the mode field 31.SRR#2 is the complete SRR that has filling, and its state is indicated by " 0111b " in the mode field 31.SRR#3 is the complete SRR that has filling, and its state is indicated by " 0110b " in the mode field 31.SRR#4 is the complete SRR that does not have filling, and its state is indicated by " 0111b " in the mode field 31.SRR#5 is invisible SRR, and its state is indicated by " 0000b " in the mode field 31.

Therefore, use different the SRR type and the mode field of definition as shown in Figure 6, just can learn and more effectively manage definite dish recording status.

Fig. 8 example illustrates SRR clauses and subclauses according to a second embodiment of the present invention.In this embodiment, the SRR clauses and subclauses are classified into open SRR and close SRR.And, according to whether using filling to classify to closing SRR.Because the basic structure of the SRR clauses and subclauses among second embodiment is identical with first embodiment's of Fig. 6, so will be omitted corresponding to the description (representing) of the same characteristic features of SRR clauses and subclauses by using same or analogous reference number.

With reference to figure 8, three kinds of different SRR types that define among this second embodiment are the SRR of open SRR, the sky of closing or partial record and the complete SRR that closes.Thereby,, in the mode field 31 of SRR clauses and subclauses, indicate a kind of in these the three kinds different SRR types according to the recording status (SRR type) of SRR clauses and subclauses.

For example, if the value of mode field 31 is " 0000b ", the corresponding SRR of this expression is open SRR, and can be any open SRR shown in Fig. 2 A to 2D.If the value of mode field 31 is " 0010b ", the corresponding SRR of this expression is the SRR of the empty SRR that closes that has filling shown in Fig. 3 A and 3B or the partial record of closing.If the value of mode field 31 is " 0100b ", the corresponding SRR of this expression comprises the situation that data are write down fully shown in Fig. 3 C or utilize the complete SRR that fills the situation of finishing record shown in Fig. 3 D or 3E.

Why the SRR type information of the mode field 31 among second embodiment can be as follows than the more simple reason of the definition among first embodiment.Although Fig. 3 is C, the SRR among 3D and the 3E is complete SRR, the LRA of SRR has nothing in common with each other.Similarly, the SRR of the opening of Fig. 2 A to 2D has different start addresses and LRA.So user mode field 31 and LRA field 34 and origing address field (OAF) 32 can further identify the type of SRR.

Fig. 9 A and 9B example respectively illustrate the recording status that can how to use defined SRR type information among Fig. 8 to come each SRR shown in index map 4F (not filling) and Fig. 4 G (filling).

With reference to figure 9A, SRR#1 is complete SRR, and its state is indicated by " 0100b " in the mode field 31.SRR#2 is the SRR of the partial record of closing, and its state is indicated by " 0010b " in the mode field 31.SRR#3 is the empty SRR that closes that does not have filling, and its state is indicated by " 0010b " in the mode field 31.SRR#4 is complete SRR, and its state is indicated by " 0100b " in the mode field 31.SRR#5 is invisible SRR, and its state is indicated by " 0000b " in the mode field 31.

On the other hand, with reference to figure 9B, SRR#1 is complete SRR, and its state is indicated by " 0100b " in the mode field 31.SRR#2 is the complete SRR that has filling, and its state is indicated by " 0100b " in the mode field 31.SRR#3 is the complete SRR that has filling, and its state is indicated by " 0100b " in the mode field 31.SRR#4 is complete SRR, and its state is indicated by " 0100b " in the mode field 31.SRR#5 is invisible SRR, and its state is indicated by " 0000b " in the mode field 31.

Figure 10 example illustrates the SRR clauses and subclauses of a third embodiment in accordance with the invention.Be similar to first embodiment of Fig. 6, this embodiment provides SRR type information in mode field 31.But it also provides session information in mode field 31.Because the basic structure of the SRR clauses and subclauses among the 3rd embodiment is identical with first embodiment's of Fig. 6, so will be omitted corresponding to the description (representing) of the same characteristic features of SRR clauses and subclauses by using same or analogous reference number.

With reference to Figure 10, mode field 31 is divided into two part 31a and 31b.The size of the 31a of first is 1, wherein store session sign (S-flag) information.S-flag information indicates whether corresponding SRR is the initial of session.Stored the SRR type information 31b that identifies the SRR type in the mode identical in remaining 3 of second portion 31b or mode field 31 with first embodiment shown in Figure 6.

More specifically, if beginning position (S-flag) 31a of mode field 31 is " 1b ", the corresponding SRR of this expression is the initial SRR of session.If the value of the 31a of first is " 0b ", then Dui Ying SRR is not the initial SRR of session.

If the value of the second portion 31b of mode field 31 (remaining three) is " 000b ", the corresponding SRR of this expression is the invisible SRR of the opening shown in Fig. 2 A.If the value of second portion 31b is " 001b ", the corresponding SRR of this expression is the incomplete SRR of the opening shown in Fig. 2 B.If the value of second portion 31b is " 010b ", the corresponding SRR of this expression is the empty SRR of the opening shown in Fig. 2 C.If the value of second portion 31b is " 011b ", the corresponding SRR of this expression is the SRR of the partial record of the opening shown in Fig. 2 D.If the value of second portion 31b is " 100b ", the corresponding SRR of this expression is the empty SRR that closes as shown in Figure 3A.If the value of second portion 31b is " 101b ", the corresponding SRR of this expression is the SRR of the partial record of closing shown in Fig. 3 B.If the value of second portion 31b is " 110b ", the corresponding SRR of this expression is the complete SRR that closes that has filling shown in Fig. 3 D and 3E.If the value of second portion 31b is " 111b ", the corresponding SRR of this expression is the complete SRR that closes that does not have filling shown in Fig. 3 C.

Figure 11 A and 11B example respectively illustrate the recording status that can how to use defined SRR type information among Figure 10 to come each SRR shown in index map 4F (not filling) and Fig. 4 G (filling).

With reference to figure 11A, owing to SRR#1 is not have the complete SRR of filling and is the initial SRR of session #1, so its state is indicated by " 1111b " in the mode field 32.That is to say that this four bit status field 31 comprises the SRR type information 31b of session sign 31a as discussed above 1 and 3 of residues.Since SRR#2 be do not have filling the partial record of closing SRR and be the initial SRR of session #2, so its state is indicated by " 1101b " in the mode field 31.Because SRR#3 does not have the empty SRR that closes of filling but is not the initial SRR of session #2, so its state is indicated by " 0100b " in the mode field 31.Because SRR#4 does not have the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0111b " in the mode field 31.Because SRR#5 is invisible SRR and is the initial SRR of session #3, so its state is indicated by " 1000b " in the mode field 31.

On the other hand, with reference to figure 13B, owing to SRR#1 is not have the complete SRR of filling and is the initial SRR of session #1, so its state is indicated by " 1111b " in the mode field 31.Because SRR#2 is to have the complete SRR of filling and is the initial SRR of session #2, so its state is indicated by " 1110b " in the mode field 31.Because SRR#3 has the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0110b " in the mode field 31.Because SRR#4 does not have the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0111b " in the mode field 31.Because SRR#5 is invisible SRR and is the initial SRR of session #3, so its state is indicated by " 1000b " in the mode field 31.

Therefore, because conversation start information and SRR type information all be provided in the mode field of each SRR clauses and subclauses, so the reference position of the type of each SRR and each session just can be learnt and is used for more effectively managing and the use dish.

Figure 12 example illustrates the SRR clauses and subclauses of a fourth embodiment in accordance with the invention.8 kinds of different SRR types that define among three kinds of different SRR types of definition rather than Figure 10 in second portion (3) the 31b presentation graphs 8 of the mode field 31 of each SRR clauses and subclauses, the 4th embodiment is identical with the 3rd embodiment shown in Figure 10.Be that mode field 31 comprises 1 S-flag and 3 SRR type informations, wherein the SRR type information is represented by one among " 000b ", " 010b " and " 100b ".

Figure 13 A and 13B example respectively illustrate the recording status that can how to use defined SRR type information among Figure 12 to come each SRR shown in index map 4F (not filling) and Fig. 4 G (filling).

With reference to figure 13A, owing to SRR#1 is complete SRR and is the initial SRR of session #1, so its state is indicated by " 1100b " in the mode field 31.Since SRR#2 be do not have filling the partial record of closing SRR and be the initial SRR of session #2, so its state is indicated by " 1010b " in the mode field 31.Because SRR#3 does not have the empty SRR that closes of filling but is not the initial SRR of session #2, so its state is indicated by " 0010b " in the mode field 31.Because SRR#4 is complete SRR is not the initial SRR of session #2, so its state is indicated by " 0100b " in the mode field 31.Because SRR#5 is open invisible SRR and is the initial SRR of session #3, so its state is indicated by " 1000b " in the mode field 31.

On the other hand, with reference to figure 11B, owing to SRR#1 is complete SRR and is the initial SRR of session #1, so its state is indicated by " 1100b " in the mode field 31.Because SRR#2 is to have the complete SRR of filling and is the initial SRR of session #2, so its state is indicated by " 1100b " in the mode field 31.Because SRR#3 has the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0100b " in the mode field 31.Because SRR#4 is complete SRR is not the initial SRR of session #2, so its state is indicated by " 0100b " in the mode field 31.Because SRR#5 is open invisible SRR and is the initial SRR of session #3, so its state is indicated by " 1000b " in the mode field 31.

Figure 14 example illustrates SRR clauses and subclauses according to a fifth embodiment of the invention.The position of available independent distribution identifies the filling of session, opening/SRR that closes and the SRR that closes.With reference to Figure 14, the mode field 31 of each SRR clauses and subclauses is divided into the 31a of first (S-flag), as the second portion 31c of opening/close sign and as the third part 31d that fills sign.

First start bit b63 (31a) of mode field 31 is designated as to carry and indicates whether corresponding SRR is the initial S-flag information of session.Here identical to using of S-flag information with the S-flag information 31a that defines with among the previous embodiment.Next position b62 (31c) is designated as and indicates corresponding SRR is open SRR or the opening of the SRR that closes/close sign.Two b61 of the residue of mode field 31 and b60 (31d) are designated as and indicate the filling sign of whether filling the SRR that closes.

As example, be " 0b " if open/close sign 31c value, the corresponding SRR of this expression is open SRR.Be " 1b " if open/close sign 31c value, the corresponding SRR of this expression closes SRR.

As example, if two 31d of the residue of mode field 31 (promptly filling sign) are " 00b ", the corresponding SRR of this expression is open SRR, and no matter whether it is filled.If filling value of statistical indicant is " 10b ", the corresponding SRR of this expression is the SRR that closes that has filling.Be masked as " 11b " if fill, the SRR that closes that does not have filling of the SRR that this expression is corresponding.

Figure 15 A and 15B example illustrate the recording status that can how to use defined SRR type information among Figure 14 to come each SRR shown in index map 4F (not filling) and Fig. 4 G (filling).

With reference to figure 15A, owing to SRR#1 is not have the complete SRR of filling and is the initial SRR of session #1, so its state is indicated by " 1111b " in the mode field 31.Since SRR#2 be do not have filling the partial record of closing SRR and be the initial SRR of session #2, so its state is indicated by " 1111b " in the mode field 31.Because SRR#3 does not have the empty SRR that closes of filling but is not the initial SRR of session #2, so its state is indicated by " 0111b " in the mode field 31.Because SRR#4 does not have the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0111b " in the mode field 31.Because SRR#5 is open invisible SRR and is the initial SRR of session #3, so its state is indicated by " 1000b " in the mode field 31.

On the other hand, with reference to figure 15B, owing to SRR#1 is not have the complete SRR of filling and is the initial SRR of session #1, so its state is indicated by " 1111b " in the mode field 31.Because SRR#2 is to have the complete SRR of filling and is the initial SRR of session #2, so its state is indicated by " 1110b " in the mode field 31.Because SRR#3 has the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0110b " in the mode field 31.Because SRR#4 does not have the complete SRR of filling but is not the initial SRR of session #2, so its state is indicated by " 0111b " in the mode field 31.Because SRR#5 is open invisible SRR and is the initial SRR of session #3, so its state is indicated by " 1000b " in the mode field 31.

Because different sign in the serviceable condition field or position are indicated conversation start information, opening/close SRR indication information and filling information respectively in the 5th embodiment, therefore can be more accurately and identify and manage this information effectively.

In various embodiment of the present invention, can change each sign of each field size or field as required.For example, as substituting of 1 session sign 31a, it is possible using 2 session signs.In addition, distribute the value of different flag/field to indicate the mode of different information (for example different SRR types, conversation start information, opening/closing information or filling information) optionally to change as required.For example, in Figure 14, filling value of statistical indicant " 00b ", " 10b " and " 11b " can be designated as the SRR that closes, the SRR that closes that has filling and the open SRR that indication does not respectively have filling.And the position of each field in the position of each sign in the start field or the SRR clauses and subclauses can change.For example, the session sign can be any one in 4 of the beginnings of mode field.

Figure 16 example illustrates the method according to renewal SRR information of the present invention.It relates to specific rank order and is contained in SRR clauses and subclauses among the SRRI, and the SRRI of record ordering cumulatively.

The method of Figure 16 can be applicable to the whole of first to the 5th embodiment of the present invention.

With reference to Figure 16, the SRR information of n record is verified to write down the SRR information of (n+1) individual renewal.The SRR information of n record and current (n+1) individual SRR information that will be updated is collected in together and by specific rank order.Then, the SRRI of ordering is recorded on the dish.In an identical manner, the SRR information of checking (n+1) individual record is to write down the SRR information of (n+2) individual renewal.The SRR information of (n+1) individual record and current (n+2) individual SRR information that will be updated are collected in together and by specific rank order.The SRRI of ordering is recorded on the dish.

As example, for clooating sequence, the SRR type information of the SRR type of sign SRR clauses and subclauses is first criterions that sort.Then, between identical SRR type, the start address of SRR is used as second criterion that sorts.Yet, for clooating sequence, how to determine that ranking criteria is a design problem, can make various selections according to system or deviser.

According to the present invention, all SRR that are present in the CD-WORM such as BD-WO can sort according to the type of SRR, thereby can easily discern the SRR type information of SRR.Can be only once confirm the SRRI that all are previous, thereby can save the access time with reference to the up-to-date SRRI of final updating.

Figure 17 example illustrates according to optical data recording/reproducing device of the present invention.This device or other device that is suitable for or system can be used for realizing as dish structure of being discussed among the various embodiment of the present invention and the method that writes down the management information that comprises recording status information.

With reference to Figure 17, optical data recording/reproducing device comprises and being used for to the video disc recording data with from the recoding/reproduction unit 10 of optical disc replay data, and the controller 20 that is used for controlling recording/reproduction units 10.All elements of data recording/reproducing device all are that coupling is gone up in operation.Controller 20 transmits to data recording/reproducing device 10 and is used for the order that the special posting field to the SRR/ session on dish writes down or therefrom reproduces.Recoding/reproduction unit 10 reproduces data according to the order of controller 20 to the dish record data or from dish.Recoding/reproduction unit 10 comprises interface unit 12, pickup unit 11, data processor 13, servo unit 14, storer 15 and microcomputer 16.Interface unit 12 and the external device communication such as controller 20.Pickup unit 11 is directly to the video disc recording data or from the optical disc replay data.The information reproduction that data processor 13 receives from pickup unit 11 recovers preferable information, and modulation is for the suitable information of CD, and the transmission signal.Servo unit 14 control pickup units 11 read from the signal of CD or with signal record in CD.Storer 15 temporary storaging datas and the various information that comprise aforesaid management information.The assembly of microcomputer 16 controlling recording/reproduction units 10.Because data recording/reproducing device shown in Figure 17 can optionally carry out padding, so deviser's design record/transcriber more freely.Recoding/reproduction unit 10 can be stored specific data automatically in underfilling operation.

To describe according to optical disc recording/reproducing process of the present invention.When the CD such as BD-WO is written into data recording/reproducing device such as the device of Figure 17, read SRR information as the nearest management information in the predetermined management area territory the TDMA that is recorded in dish.Be recorded in that SRR head in the SRR information and SRR clauses and subclauses are read and blotter in the storer 15 of recoding/reproduction unit 10.Nearest dish recording status is embodied in the SRR information of storage.As discussed above such, the dish recording status of whole disk area and the existence of special session and position can obtain confirming from SRR type information each SRR and LRA information.As a result, the use to the SRRI of definition according to the present invention is favourable and effective.

For example because microcomputer 16 can be from SRR information confirms to be present in the SRR type in the dish exactly, therefore, can be from the SRR of the opening confirmed the recordable NWA of sign.Can confirm from the SRR that closes that confirms whether SRR is filled.Do not close if SRR does not have with filling, then can fill corresponding zone, make and to remove Unrecorded zone.

When SRR closed according to the shutdown command of controller 20, microcomputer 16 can determine that SRR is after filling or does not close with not having filling.Depend on the deviser, device can be designed to also unconditionally close SRR even without any filling order that comes self-controller 20 after filling.

When the SRR type changed owing to aforesaid filling, the SRR type information in the SRR clauses and subclauses was changed and record, thereby another data recording/reproducing device can use this information.

Above-mentioned function can be called as recoding/reproduction unit 10 and " fill function automatically ".In recoding/reproduction unit 10, use this function to receive dummy data and fill on time of SRR more favourable in filling order in response to controller 20.Therefore, the definition of SRR type and can at random select according to the method for the record SRR information of the definition that is provided with.

Industrial applicibility

Recording method comprises new SRR type and the conversation type that more accurately defines the indicating panel recording status according to CD-WORM management information of the present invention, and be used for identifying the SRR type of SRR information and the record identification information of session, thereby can write down effectively and manage information.

It will be obvious to those skilled in the art that and to make various modifications and variations in the present invention.Thereby, the invention is intended to cover these modifications of the present invention and modification, as long as they are within the scope and full scope of equivalents thereof of claims.

Claims

1. recording medium comprises:

At least one recording layer; And

At least one SRR clauses and subclauses, each SRR clauses and subclauses is corresponding to a SRR and comprise at least one mode field of the recording status that is used to indicate this corresponding SRR, described at least one mode field comprises being used in reference to whether this corresponding SRR is shown be the initial conversation start sign of session, described session is formed by one group of SRR, and each SRR clauses and subclauses also comprises the FA final address field that the SRR that indicates correspondence originates in origing address field (OAF) where and indicates the last recording address of corresponding SRR.

2. recording medium as claimed in claim 1 is characterized in that, each SRR clauses and subclauses is made up of 64 bit sequences, and its highest significant bit is first bit in this 64 bit sequence.

3. recording medium as claimed in claim 1 is characterized in that, described at least one mode field comprises that size is that the SRR mode field and the size of 4 bits is the conversation start sign of 1 bit.

4. recording medium as claimed in claim 3 is characterized in that, for each SRR clauses and subclauses, one in 4 bits of SRR mode field as the conversation start sign.

5. recording medium as claimed in claim 1 is characterized in that, the size of each origing address field (OAF) and FA final address field is 28 bits.

6. recording medium as claimed in claim 1 is characterized in that origing address field (OAF) is positioned at before the FA final address field.

7. recording medium as claimed in claim 6 is characterized in that, described at least one mode field is positioned at before the FA final address field.

8. recording medium as claimed in claim 1 is characterized in that, described at least one mode field also comprises: the SRR type field that is used in reference to the type that corresponding SRR is shown.

9. recording medium as claimed in claim 8 is characterized in that, described SRR type field size is 3 bits.

10. recording medium as claimed in claim 8 is characterized in that, it is open SRR or the SRR that closes that described SRR type field indicates corresponding SRR.

11. recording medium as claimed in claim 10 is characterized in that, it is owing to close or do not close with not having any filling after filling that described SRR type field also indicates corresponding SRR.

12. recording medium as claimed in claim 8 is characterized in that, it is one of following that described SRR type field indicates corresponding SRR:

Open sightless SRR;

Open incomplete SRR;

Open empty SRR;

The SRR of open partial record;

The empty SRR that closes;

The SRR of the partial record of closing;

The complete SRR that has padding data that closes;

The complete SRR that does not have padding data that closes.

13. recording medium as claimed in claim 8 is characterized in that, it is one of following that described SRR type field indicates corresponding SRR:

Open SRR;

The SRR of the partial record of the empty SRR of opening or opening; And

The complete SRR that closes.

14. recording medium as claimed in claim 1 is characterized in that, described at least one mode field also comprises:

Being used in reference to corresponding SRR is shown is open SRR or the opening of the SRR that closes/close sign.

15. recording medium as claimed in claim 14 is characterized in that, described opening/close sign size is 1 bit.

16. recording medium as claimed in claim 14 is characterized in that, described at least one mode field also comprises:

Be used in reference to and illustrate whether corresponding SRR is the filling sign that is filled.

17. recording medium as claimed in claim 16 is characterized in that, the size of described filling sign is 2 bits.

18. recording medium as claimed in claim 16 is characterized in that, it is one of following that described filling sign indicates corresponding SRR:

Open SRR;

The SRR that closes that has filling; And

The SRR that closes that does not have filling.

19. recording medium as claimed in claim 1 is characterized in that, described at least one SRR clauses and subclauses form the SRR item list, and this SRR item list is according to predetermined rank order.

20. recording medium as claimed in claim 19 is characterized in that, the criterion that is used for according to predetermined rank order SRR item list is an origing address field (OAF).

21. recording medium as claimed in claim 8 is characterized in that, described at least one SRR clauses and subclauses form the SRR item list, and this SRR item list is according to predetermined rank order, and the criterion that is used for according to these predetermined rank order SRR clauses and subclauses is the SRR type field.

22. recording medium as claimed in claim 1 is characterized in that, one at least one mode field is preserved for follow-up use.

23. recording medium as claimed in claim 1 is characterized in that, described at least one SRR clauses and subclauses are stored in the temporary defect management area territory of appointment on described at least one recording layer.

24. recording medium as claimed in claim 1 is characterized in that, described recording medium is a CD-WORM.

25. one kind is used for management information is recorded in method on the recording medium with at least one recording layer, described method comprises:

At least one SRR clauses and subclauses of record on described at least one recording layer, each SRR clauses and subclauses is corresponding to a SRR and comprise at least one mode field of the recording status that is used to indicate this corresponding SRR, described at least one mode field comprises being used in reference to whether this corresponding SRR is shown be the initial conversation start sign of session, described session is formed by one group of SRR, and each SRR clauses and subclauses also comprises the FA final address field that the SRR that indicates correspondence originates in origing address field (OAF) where and indicates the last recording address of corresponding SRR.

26. method as claimed in claim 25 is characterized in that, in described recording step, each SRR clauses and subclauses is made up of the sequence of 64 bits, and its highest significant bit is first bit in this 64 bit sequence.

27. method as claimed in claim 25 is characterized in that, in described recording step, described at least one mode field comprises that size is that the SRR mode field and the size of 4 bits is the conversation start sign of 1 bit.

28. method as claimed in claim 27 is characterized in that, for each SRR clauses and subclauses, one in 4 bits of SRR mode field as the conversation start sign.

29. method as claimed in claim 25 is characterized in that, in described recording step, the size of each origing address field (OAF) and FA final address field is 28 bits.

30. method as claimed in claim 25 is characterized in that, origing address field (OAF) is positioned at before the FA final address field.

31. method as claimed in claim 30 is characterized in that, described at least one mode field is positioned at before the FA final address field.

32. method as claimed in claim 25 is characterized in that, in described recording step, described at least one mode field also comprises: the SRR type field that is used in reference to the type that corresponding SRR is shown.

33. method as claimed in claim 32 is characterized in that, described SRR type field size is 3 bits.

34. method as claimed in claim 32 is characterized in that, it is open SRR or the SRR that closes that described SRR type field indicates corresponding SRR.

35. method as claimed in claim 34 is characterized in that, it is owing to close or do not close with not having any filling after filling that described SRR type field also indicates corresponding SRR.

36. the method as claim 32 is stated is characterized in that, it is one of following that described SRR type field indicates corresponding SRR:

Open sightless SRR;

Open incomplete SRR;

Open empty SRR;

The SRR of open partial record;

The empty SRR that closes;

The SRR of the partial record of closing;

The complete SRR that has padding data that closes;

The complete SRR that does not have padding data that closes.

37. method as claimed in claim 32 is characterized in that, it is one of following that described SRR type field indicates corresponding SRR:

Open SRR;

The SRR of the partial record of the empty SRR of opening or opening; And

The complete SRR that closes.

38. method as claimed in claim 35 is characterized in that, in described recording step, described at least one mode field also comprises:

39. method as claimed in claim 38 is characterized in that, described opening/close sign size is 1 bit.

40. method as claimed in claim 38 is characterized in that, in described recording step, described at least one mode field also comprises:

Be used in reference to the filling sign whether corresponding SRR is filled is shown.

41. method as claimed in claim 40 is characterized in that, the size of described filling sign is 2 bits.

42. method as claimed in claim 40 is characterized in that, it is one of following that described filling sign indicates corresponding SRR:

Open SRR;

The SRR that closes that has filling;

The SRR that closes that does not have filling.

43. method as claimed in claim 25 is characterized in that, described at least one SRR clauses and subclauses form the SRR item list, and described method also comprises according to the predetermined described SRR item list of rank order.

44. method as claimed in claim 43 is characterized in that, in described ordered steps, the criterion that is used for according to predetermined rank order SRR item list is an origing address field (OAF).

45. method as claimed in claim 32 is characterized in that, described at least one SRR clauses and subclauses form the SRR item list, and described method also comprises according to the predetermined described SRR item list of rank order based on the SRR type field.

46. method as claimed in claim 25 is characterized in that, in described recording step, one at least one mode field is preserved for follow-up use.

47. method as claimed in claim 25 is characterized in that, described at least one SRR clauses and subclauses are stored in the temporary defect management area territory of appointment on described at least one recording layer.

48. method as claimed in claim 25 is characterized in that, in described recording step, described recording medium is a CD-WORM.

49. one kind is used for management information is recorded in device on the recording medium with at least one recording layer, described device comprises:

Recoding/reproduction portion, be used at least one SRR clauses and subclauses of record on described at least one recording layer, each SRR clauses and subclauses is corresponding to a SRR and comprise at least one mode field of the recording status that is used to indicate this corresponding SRR, described at least one mode field comprises being used in reference to whether this corresponding SRR is shown be the initial conversation start sign of session, described session is formed by one group of SRR, and each SRR clauses and subclauses also comprises the FA final address field that the SRR that indicates correspondence originates in origing address field (OAF) where and indicates the last recording address of corresponding SRR.