CN1871657A

CN1871657A - Method and device for recording management information on optical disc write once

Info

Publication number: CN1871657A
Application number: CNA2004800309946A
Authority: CN
Inventors: 朴容彻
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2003-09-08
Filing date: 2004-09-02
Publication date: 2006-11-29
Anticipated expiration: 2024-09-02
Also published as: CN1871657B; CN1871655B; CN1871655A; CN1867985A; KR20050025450A; CN1867985B

Abstract

A write-once optical disc and a method and apparatus for recording management information of the write-once optical disc, are provided. The method includes closing an opened session by closing all opened sequential recording-units of the opened session, opening a new session having a new sequential recording-unit, and recording session start information on the recording medium. The session start information indicates whether or not the new sequential recording-unit is a start of the new session.

Description

CD-WORM and the method and apparatus that is used for records management information on this CD-WORM

Technical field

The present invention relates to CD-WORM, be used to write down the method for the management information of this CD-WORM, and be used to write down the method and apparatus with this CD-WORM of playback.

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, recently developed for example novel high-density optical record medium (HD-DVD) of Blu-ray Disc and so on, 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: for the recording of information method of the recording status of display disc, this state is one of characteristic of CD-WORM.But the information of the recording status of display disc permission main frame or user easily find the recording areas on the CD-WORM.For example, under CD series situation, this information is called as orbit information, and under DVD series situation, this information is called as RZone (Zone R territory) or fragment (fragment).

Therefore, need the method for a kind of effective record corresponding to the management information of high density compact disc recording status.And this method should be provided to guarantee compatible with standardized information.In addition, need the method for the management information on a kind of recording disk, can be applied to write-once high density compact disc and Blu-ray disc and be used to carry out defect management.

Summary of the invention

Therefore, the present invention relates to the method and apparatus of a kind of CD and indicator management information, relate in particular to the method and apparatus that is used for effectively managing described dish recording status information, they have fully been 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 type that is used for the journal scope (SRR) of definition dish and also will be recorded in the interior method and apparatus of SRR information (SRRI) about the information of SRR.

Another object of the present invention is to provide a kind of and is used to write down SRRI as the dish recording status information and described information can be applied thereon the method and apparatus of the CD-WORM of carrying out the physical imperfection management, and a kind of method and apparatus that is used for recovering from CD-WORM the SRRI that damages is provided.

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.

Should be understood that above general description of the present invention and following detailed description are exemplary and explanat and aim to provide stated of the present invention and further specify.

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 shows according to the general structure of CD-WORM of the present invention and the method that is used for records management information on this CD-WORM;

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

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

Fig. 4 A show according to the present invention when fill empty data to CD-WORM close SRR the time fill the example of identifying information;

Fig. 4 B shows according to the present invention the example of filling identifying information when filling empty data to the open SRR of CD-WORM;

Fig. 5 shows according to the general structure of CD-WORM of the present invention and is used to write down the method for SRRI as management information;

Fig. 6 A shows the structure that is recorded in the SRR entry tabulation among the SRRI according to the present invention;

Fig. 6 B shows the example of the SRR entry in the SRR tabulation that is recorded in Fig. 6 A according to the present invention;

Fig. 6 C illustrates the structure example according to the open SRR list of fields of SRRI of the present invention;

Fig. 7 A illustrates according to the present invention to Figure 11 B, relies on the process of the dish recording status record SRRI in the CD-WORM; And

Figure 12 is according to one embodiment of the invention, shows the process flow diagram that uses the method for CD-WORM SRRI when up-to-date SRRI damages;

Figure 13 A and Figure 13 B are according to one embodiment of the invention, show the method for recovering up-to-date SRRI in CD-WORM; And

Figure 14 illustrates according to one embodiment of the invention, is used for the record/playback apparatus of CD-WORM.

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).Most of in this manual term all is general general term, but has the part vocabulary of being selected and being used by the inventor, subsequently will be in the description of correspondence specific definition the implication of these terms.Therefore, unless be appreciated that in instructions and limit, otherwise should not understand the present invention with the implication of the definition of these terms.

When forming these zones of a plurality of zones and journal in dish, each in these zones all is called as journal scope (SRR).SRR is the record cell (journal unit) that is used for the journal user data.SRR has one or more bunches size." SRR information " is the name of the information of identification dish recording status (SRRI).The sequential recordng mode that SRRI is applied to coil and belong to one or more SRR.The meaning of " filling (padding) " is to use empty data (dummy data) or the zero not posting field of filling in the SRR under user's request or according to the control of record/playback apparatus (Figure 12).And " session (session) " comprises one or more continuous SRR, and only is used for playback for the compatibility of standard is discerned SRR.

Fig. 1 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 1 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 1, dish comprises introduces district, data field and draw-out area, and all these zones all are positioned at recording layer.Introduce district and draw-out area and have a plurality of dishes (or defective) directorial area (DMA 1-DMA 4), be used for repeatedly storing identical defect management information.In the data field, the interior spare area ISA0 and/or the outer spare area OSA0 that are used to replace defective zone are provided.

Known CD-RW does not have or needs big 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 directorial area.For more efficiently management information, in CD-WORM, management information temporarily is stored in the temporary defect management area (TDMA).When dish be ready to finally finish/when closing, be stored in management information among final/last TDMA and just transfer to and be used for more permanent storage among the DMA.

As shown in Figure 1, there are two types TDMA:TDMA0 and TDMA1.TDMA0 distributes to introduce the district and have fixing immutable size.TDMA1 distributes to outer spare area OSA0 and has the size that changes according to the size of spare area.For example, the big or small P of TDMA1 is P=(N * 256)/4 bunches (N is a positive integer), and be whole outer spare area OSA0 size 1/4th.

In each of TDMA0 and TDMA1, can with temporary defect list (TDFL) information and temporary disk (T-disk) definition structure (TDDS) information together (TDFL+TDDS) be recorded in the record cell (for example being bunch (cluster) under the situation of BD-WO); Perhaps can be as shown with SRRI and TDDS together (SRRI+TDDS) be recorded in the record cell.Record SRRI then uses SBM (space bit map) when using recorded at random when using journal.

During each the renewal, just in one bunch size, be recorded in the TDMA with (TDFL+TDDS) or (SRRI+TDDS).In example shown in Figure 1, TDFL and TDDS are recorded in bunch of TDMA0, and SRRI and TDDS are recorded in the next one bunch of TDMA0, and SRRI and TDDS are recorded in next again bunch of TDMA0 or the like.

If defect area in the data field, occurs, use the spare area to its process that substitutes with regard to carrying out.TDFL is the information of this process of management as defect list.Under the situation of single-layered disk, use 1 bunch to 4 bunches record TDFL according to the size of defect list.SRRI is that the specific region of notice dish is to have write down or Unrecorded information.When being the continuous recording type, dish can be extensive use of this SRRI.That is, SRRI can be effectively applied to write down with order or incremental record mode the situation of this dish.In addition, usually TDDS information is recorded in one bunch of the directorial area on last sector in 32 sectors.Be recorded a part about the information of the Routine Management of this dish and defect management as TDDS information, and last this TDDS information of record during new administration information more in TDMA always usually.

The present invention relates to be applied to such as the generation of the novel high-density CD of BD-WO and the method for recording disk recording status information.Among the present invention, use SRRI as coiling recording status information and as described in Fig. 2 A to Fig. 3 E, having defined various SRR types.Following the detailed structure of SRRI will be discussed with reference to figure 5A to Fig. 6 C.The present invention also defines and has distinguished the dissimilar SRR that forms and uses them to write down and the playback CD on dish.The following method that will describe the type that defines SRR recently in detail and create the information of the different SRR types of identification.

Fig. 2 A to 2D shows the various open SRR type that is used for CD-WORM (such as BD-WO) according to of the present invention.Open SRR be meant wherein can record data SRR.If but the SRR record, then SRR has " but next one write address " (NWA).Therefore, opening SRR is the SRR with NWA.The SRR that does not have NWA and can not write down is called as and closes SRR.Following will the description with reference to figure 3A to 3E closed SRR.

More specifically, Fig. 2 A shows one type invisible SRR as open SRR.Sightless SRR forms and refers to not recording areas in the outmost turns part or the initial blank parts of dish usually.In other words, only define the start address of invisible SRR, and the end address of invisible SRR means the end of user data.Because record data not as yet, so that " state-of-the-art record district " (LRA) has null value and this NWA is identical with the start address value of invisible SRR.

Fig. 2 B shows the imperfect SRR as the another kind of type of open SRR.Incomplete SRR is the SRR that the invisible SRR of Fig. 2 A is carried out partial record.In other words, only define the start address of imperfect SRR, and the end address of incomplete SRR means the end of user data.Yet in incomplete SRR partial record data, be the next address of the LRA of imperfect SRR and then so the LRA of incomplete SRR represents the up-to-date address of normal user data and this NWA.That is to say that described NWA is a PSN of next available record bunch in the related SR R.

If this SRR of partial record in open SRR is just with reference to the relation between detailed description LRA of the filling shown in the figure 2B and the NWA.Provide Fig. 2 B point frame enlarged drawing partly in this figure bottom.

In other words, LRA be wherein physical record the zone of user data.If write down user data on some sector in comprising bunch of 32 sectors, the physical sector number (PSN) that has then write down the respective sectors of user data on it is exactly the LRA of SRR shown in Fig. 2 B.Yet, will be the PSN of bunch head sector subsequently so represent the NWA of extra readable area because the master record unit of Blu-ray disc is bunch.Therefore, if data are to be recorded on some sector of this bunch and record is finished (being that journal stops), fill remaining not record sector with regard to empty data used according to the invention.Use the remaining sector of not writing down of this bunch of zero padding for example.If even all write down user data on last sector of this bunch, then obviously need not above-mentioned filling and describe.

Fig. 2 C shows the empty SRR as open another type of SRR.Different with imperfect SRR with the invisible SRR of Fig. 2 A and 2B, this sky SRR is the SRR that generally is formed on the dish zone line of record data, but not is formed on the outmost turns part of dish.In other words, this is to form a SRR but as yet not in the situation of SRR identifying recording layer for main frame or user.The record not as yet because empty SRR has start address and end address, then the LRA of empty SRR has " zero " value and NWA and has the identical value of start address with this sky SRR.

Fig. 2 D shows the partial record SRR of open another type of SRR.This partial record SRR is by the SRR of partial record at empty SRR shown in Fig. 2 C.Therefore, part SRR has start address and end address.Owing to partly record data in the SRR partly writing down, but so the LRA of this partial record SRR represent the up-to-date address of normal user data and the next one write address that this NWA is and then LRA.

If this SRR of partial record in the open SRR of Fig. 2 D, then Fig. 2 D point frame enlarged drawing partly just shows the relation that is relevant to filling between LRA and the NWA.Because identical, just omit detailed description to this characteristic with the description of Fig. 2 B.

Therefore with reference to figure 2A to Fig. 2 D, open SRR of the present invention can be classified as the not open SRR (Fig. 2 A and 2C) of record and the partly open SRR (Fig. 2 B and 2D) of record.Partly the open SRR of record (Fig. 2 B and 2D) can be classified as open SRR and the unfilled open SRR that fills again after LRA.

According to the present invention, the open SRR sum in the given time place CD-WORM is restricted to a predetermined value, because be difficult to a large amount of open SRR of management.For example in BD-WO of the present invention, the sum of open SRR is 16 to the maximum on the dish.Can use " open SRR tabulation " field and " open SRR number " field in the SRRI head to refer to about the position of open SRR and the information of number." open SRR tabulation " field and " open SRR number " field in the SRRI head will be discussed when in conjunction with Fig. 5 to Fig. 6 C the SRRI structure being discussed subsequently.

Fig. 3 A to 3E shows according to the difference of the CD-WORM such as BD-WO of the present invention and closes the SRR type.Close SRR be meant on it can not record data (for example user data) SRR.If SRR can not record, then this SRR does not have NWA.So closed SRR because this SRR writes down just can create fully.But both made the recording areas residue was arranged in SRR, but user/main frame also can cut out SRR by the shutdown command establishment.

More specifically, Fig. 3 A shows the empty SRR as a kind of SRR of closing.Empty SRR does not write down the Any user data and the empty SRR of opening (Fig. 2 C) that closed by shutdown command on it.Therefore, Fig. 3 A shows the empty SRR Fig. 2 C that closes and then shows open empty SRR.

Fig. 3 B shows the partial record SRR that closes SRR as another kind.The partial record SRR of Fig. 3 B does not write down any additional customer's data and the open portion record SRR shown in Fig. 2 D of being closed by shutdown command on it.Therefore, Fig. 3 B shows the partial record SRR Fig. 2 D that closes and then shows open partial record SRR.

Fig. 3 C shows the complete S RR that closes SRR as another.Complete S RR is a complete user data or by the SRR of empty data complete filling in SRR.Complete SRR only exists in closing SRR.

Fig. 3 D shows the closed portion record SRR that closes SRR as another.But the part of Fig. 3 D record SRR uses empty data to fill the SRR of LRA recording areas afterwards when closing partial record SRR open shown in Fig. 2 D.But but here can be by the LRA that be filled in this SRR as the empty data of padding data or the whole posting fields after the NWA or recording areas (for example one or more bunches) partly.In addition, when filling some zone, can write down specific character code (such as ascii character) and be used as padding data, close to indicate this SRR with the record that replaces empty data.In the case, the specific character sign indicating number as padding data can be " CLSD " that the corresponding SRR of indication closes.

Fig. 3 E shows the empty SRR that closes SRR as another.But the empty SRR of Fig. 3 E is with the LRA that specifies empty data to fill this SRR posting field and the SRR that closing subsequently afterwards when closing shown in Fig. 2 C open empty SRR.But but here can be by the LRA that be filled in this SRR as the empty data of padding data or the whole posting fields after the NWA or recording areas (for example one or more bunches) partly.In addition, when filling some zone, can write down specific character code (such as ascii character) and be used as padding data, close to indicate this SRR with the record that replaces empty data.In the case, the specific character sign indicating number as padding data can be " CLSD " that the corresponding SRR of indication closes.

If the SRR that closes of Fig. 3 D and 3E is filled into its end address by empty data fully, then Fig. 3 D and 3E's closes SRR just with identical with reference to the complete S RR of figure 3C description.In other words, in the present invention in order to determine to close the type of SRR, become when closing SRR when using shutdown command will open SRR, just definition close SRR with difference not with the residue of closing SRR with filling not the situation of recording areas (Fig. 3 A and 3B) and the band filling close SRR the residue situation of recording areas (Fig. 3 D and 3E) not.

In addition in the present invention, when closing SRR, can not be with and close SRR with filling or after using specific padding data filling, close SRR.It is believed that Blu-ray disc by SRR or fill not recording areas and with the dish compatibility that only is used for playback in a series of.Record/playback apparatus (for example shown in Figure 14) can optionally be carried out padding, thereby further guarantees the design freedom of data recording/reproducing device.When the filling dish, the recording/playback of record/playback apparatus part (for example assembly 10 of Figure 14) can write down particular data automatically, makes assembly 10 receive the specific data of self-controller and can solve matter of time under the filling situation.

Fig. 4 A and 4B show according to one embodiment of the invention, for CD-WORM close record SRR and open SRR when filling empty data respectively, fill the example of identification information.Can when closing this opening SRR, carry out filling to this open SRR.But also can carry out filling and need not to close this SRR (for example in Fig. 2 B and 2D, carry out and fill) open SRR in response to order to stop the situation of journal.That is to say that Fig. 4 A relates to Fig. 2 B or 2D, and Fig. 4 B relates to Fig. 3 D or 3E.

More specifically, Fig. 4 A shows for open SRR, only writes down actual user data and use empty data to fill the situation of the remaining area of this bunch on one bunch part zone.Fig. 4 A shows to be provided with and fills identification information " Padding_flag " as respective cluster inner control sign, and " Padding_flag " wherein is used to distinguish sector of wherein having write down actual user data and the sector of wherein filling empty data.Exist 32 Padding_flag separately corresponding to one in 32 sectors of each bunch of SRR.

Shown in Fig. 4 A, in this example,,, do not exist to have to fill in the indication respective sectors so the Padding_flag of these sectors is made as certain value (for example " 0b ") because sector 0 to sector 29 is the zones of wherein having write down user data.On the other hand, because sector 30 and sector 31 are the zones that are filled with padding data, all are set as such as the value of " 1b " and have filling in respective sectors with indication so be used for each Padding_flag of these sectors.

In this example, LRA represents the position (PSN) of sector 29.Therefore, video disc recording/playback reproducer can decode comprise LRA bunch, read corresponding to the Padding_flag of each sector and the sector of in correct identification subsequently bunch, using empty data to fill.

But Fig. 4 B shows under closing the situation of SRR and to use the identified region of specifying in the empty data complete filling SRR bunch.Fig. 4 B shows to be provided with and fills identification information " Padding_flag " as respective cluster inner control sign, and " Padding_flag " wherein is used to distinguish does not have the SRR that closes SRR and close with filling after filling.

Shown in Fig. 4 B, in this example because sector 0 to sector 31 is the zones by empty data complete filling, think these sectors each Padding_fla be set be certain value such as " 1b ", with the filling of indication respective sectors.The result is, video disc recording/playback reproducer can decode have above-mentioned filling identification information (Padding_flag) bunch, read corresponding to the Padding_flag of each sector and all sectors of in correct identification subsequently bunch, using empty data to fill.

In other words, Fig. 4 A relates to the filling that is used for journal on the termination dish and Fig. 4 B relates to the filling that is used to close SRR.Fig. 4 A shows all residue sectors of being filled by empty data in relevant bunch when journal stops.Each fills sign all corresponding to each sector in this bunch, and it is set to " 1b " under the situation about being filled in corresponding sector.In the situation of Fig. 4 A, be filled in each sector and occur once.In other words, under the situation of Fig. 4 B, when closing SRR, there are one or more bunches and are filled (next bunch).For a bunch of filling, fill sign corresponding to 32 of 32 sectors of this bunch and all be set to " 1b " with the filling of indication shown in Fig. 4 B bunch.

Fig. 5 shows according to SRRI structure of the present invention and the information that is included in the SRRI to Fig. 6 C.

More specifically, Fig. 5 shows the complete structure of SRRI.SRRI belongs to one or more SRR, and provides the management information of dish recording status.In the compact disk structure of Fig. 1 and Fig. 5, SRRI is recorded in TDMA (for example, TDMA0) in.As shown in Figure 5, each SRRI 60 among the TDMA comprises three parts: head 50, the tabulation 30 of SRR entry and SRR tabulation terminal symbol 40.Head 50 is used to discern SRRI., the SRR entry each recording status of the corresponding SRR of tabulation 30 expression.SRR tabulation terminal symbol 40 is represented end or the termination of this SRRI.

Head 50 is positioned at the front portion of SRRI, and comprise " SRRI structural identifier " field 51, " open SRR tabulation " field 52, " SRR writes down item number " field 53 and " open SRR number " field 54, make and before reading the tabulation of SRR entry, just can check whole SRR entry contents.At this, " SRRI structural identifier " field 51 identification SRRI.The position of the open SRR that " open SRR tabulation " field 52 notices are associated with corresponding SRRI also will further describe with reference to figure 6C subsequently.The sum of all SRR that 53 expressions of " SRR writes down item number " field are associated with SRRI 60.The sum of the open SRR of " open SRR number " field 54 expressions.

After the SRRI head 50, the tabulation of record SRR entry (or the tabulation of SRR entry) 50 in SRRI.After last SRR entry, by the end of SRR tabulation terminal symbol 40 mark SRRI.SRR tabulation terminal symbol 40 is effective informations of the end position of the SRRI of sign correspondence when SRRI has variable-size.

Therefore, as management information, SRRI comprises head 50, the tabulation 30 of SRR entry and SRR tabulation terminal symbol 40.All these information all when upgrading by batch record.

Fig. 6 A shows the example that is recorded in the SRR entry tabulation 30 in the SRRI according to the present invention.SRR entry tabulation 30 comprises one or more SRR entries 35.Each SRR entry 35 has the information of the last SRR of dish (by SRR number sign), has 8 bytes (64) and represents the recording status of corresponding SRR.Each SRR entry 35 comprises the mode field 31 (state 1) of the status information that is used to store corresponding SRR, the origing address field (OAF) 32 that is used to store the start address of corresponding SRR, another mode field 33 (state 2) of status information that is used to store corresponding SRR and the LRA field 34 that is used to store the last recording address (LRA) (promptly being stored in the end address of user data in the SRR) of corresponding SRR.Usually, the start address of corresponding SRR is represented by physical sector number (PSN) in origing address field (OAF) 32.

According to an embodiment, 4 highest significant positions in 64 of SRR entry 35 (position 63 to the position 60) are assigned to first mode field 31, SRR entry 35 ensuing 28 (position 59 to the position 32) is assigned to origing address field (OAF) 32, and SRR entry 35 ensuing 4 (position 31 to the position 28) is assigned to second mode field 33 and SRR entry 35 last 28 (position 27 to the position 0) is assigned to LRA field 34.

Fig. 6 B shows an example that is recorded in the SRR entry 35 of SRR entry tabulation 30 according to the present invention.State 1 field 31 is used to store the information of whether carrying out any filling in the corresponding SRR that is identified in.State 2 fields 33 are used to store whether the corresponding SRR of identification is the information of conversation start.

Shown in Fig. 6 B, in 4 of state 1 field 31,1 is to be used for storage to fill identifying information " P_flag ", and whether its identification has been carried out SRR with padding data is filled.Other 3 modifications that then are preserved for any rule in 4.

Should be realized that, be recorded in filling identifying information " P_flag " in the SRR entry and be similar to filling identifying information " Padding_flag " with reference to figure 4A and Fig. 4 B description.But they have different targets.If specific SRR finally is filled, the P_flag that then P_flag is recorded in the SRR entry with the corresponding SRR of direct representation fills SRR.Therefore, optical recording/playback reproducer (Figure 12) just can check easily by check the P_flag that writes down as management information in the SRR entry whether corresponding SRR is filled.After this, the decoding of video disc recording/playback reproducer is above with reference to figure 4A and the described correspondence of 4B bunch (SRR) and read value corresponding to the Padding_flag of each sector of SRR from this bunch, makes video disc recording/playback reproducer can determine to have how many SRR to be filled after its LRA.

In the example of Fig. 6 B, first (31a) carries P_flag field 31 remainders in state 1 field 31 3 (31b) then keep.If P_flag=1b, the corresponding SRR of this expression fill SRR (promptly this SRR partially filled at least has padding data).If P_flag=0b, the corresponding SRR of this expression does not fill SRR.

Whether being assigned 4 state 2 fields 33, to carry about corresponding SRR be the information of conversation start SRR.1 of 4 bit fields 33 is carried session label information " S_flag ", and whether be used to identify corresponding SRR is the information of conversation start SRR.3 other modifications that then are preserved for any rule of field 33.In this example, 3 (33b) of the 1st (33a) storage S_flag field 33 remainders then keep in 4 the field 33.If S_flag=1b, the corresponding SRR of this expression is the initial SRR of session.If S_flag=0b, the corresponding SRR of this expression is not the initial SRR of session.

Reason by S_flag sign conversation start provides and the compatibility of allocation exterior domain with the existing dish structure (such as DVD) of differentiating sessions (for example, entering border (boarder-in/boarder-out), border/draw).Yet, but the overall recording capacity that the distribution of additional areas can the reduction dish.So the present invention overcomes this restriction by session label information (S_flag) is provided in SRR entry 35.Therefore, can use the session label information S_flag in the SRR entry 35 to discern the session structure of whole dish easily and need not the allocation exterior domain to store these session distinctive information.

For the present invention describes conveniently, described P_flag and S_flag as the separated position information in the separated position field that is stored in the SRR entry, but also can be stored in them in the lump in the mode field of SRR record.

The LRA field 34 of SRR entry 35 is to be used for writing down the end address information of user data of corresponding SRR and the end address of the user data (except padding data) that storage is recorded in corresponding SRR.

Fig. 6 C shows the detailed structure of " the open SRR tabulation " field 52 of SRRI among Fig. 5 according to one embodiment of the invention.Canned data is used for determining position/identifier of each exploitation SRR in the field 52.Shown in Fig. 6 C, the numbering of the one or more open SRR of record is as the positional information of open SRR in this " open SRR tabulation " field 52.Distribute open SRR number of two bytes with the specific SRR of record identification.

In the present invention, as 16 open SRR are arranged at most on the fruit tray, then use the position (sign) of the corresponding open SRR of each open SRR number record (and open SRR entry).Therefore, when being written into the CD with dish structure of the present invention, record/playback apparatus is just determined the readable region position of this dish based on open SRR information of the present invention.In other words, the position of open SRR should be known recorded information on shroud.Because it is open SRR or the information of closing SRR that the corresponding SRR of identification is not provided in the SRR entry especially, then sign/position of open SRR just is recorded in the SRRI head and can be visited easily, makes video disc recording/playback reproducer just can read more easily and the relevant SRR entry of open SRR entry that is identified.

Therefore, having only its SRR number is that the SRR that is recorded in " open SRR tabulation " field 52 is extra recordable as open SRR.After this, close SRR, just from " open SRR tabulation " field 52, remove this SRR that closes SRR number, thereby can distinguish open SRR easily and close SRR if open SRR becomes.

Now will be according to the present invention, a kind of method that is used to upgrade the SRRI of indicating panel recording status is described.More specifically, will the method for opening and closing SRR and session and record SRRI of filling empty data be described with reference to figure 7A to Figure 11 B.

Fig. 7 A to Figure 11 B shows in proper order according to the present invention the SRRI recording method of the dish recording status in the CD-WORM.More specifically, Fig. 7 A to Figure 11 B shows in proper order and how to create dissimilar SRR (shown in Fig. 2 A to 3E) and how to use sequential steps record SRRI according to time stream on dish.Can have the CD-WORM of SRR (such as BD-WO) to go up these methods of realization, and SRRI and dish structure will be discussed in conjunction with Fig. 1 to Fig. 6 C.

Fig. 7 A shows step 1, and the Zone Full of its mid-game all is that the part of recordable initial blank disc and thick arrow points has been indicated the NWA position.The reference position of this dish is NWA.A SRR (SRR#1) is only arranged herein, on the dish.This is the invisible SRR shown in Fig. 2 A.Therefore, session is in the original state that only has an open session #1 in the dish.This dish is that blank disc is not also as yet at disc recording SRRI.Than the rudimentary record cell such as SRR, session is senior record cell and comprises at least one SRR.Can write down a plurality of sessions and this dish is called many sessions dish on the dish.

Fig. 7 B shows step 2, and wherein data (for example, user data) have been write down on the blank disc top of Fig. 7 A, but session #1 does not close as yet.Under this state, dish only has a SRR (SRR#1), is exactly the incomplete SRR shown in Fig. 2 B.Keep session #1 as open session.Shown in Fig. 7 B, the part of records user data of incomplete session SRR#1 and use empty data fill SRR#1 (bunch) non-recorded part (for example sector).As mentioned above, the filling sector of SRR by be recorded in this bunch appointed area (for example as bunch/the filling sector of SRR#1 in) " Padding_flag=1b " indicated.

Fig. 7 C shows the process that writes down SRRI when dish is in Fig. 7 B state in the directorial area at this dish.For convenience of explanation, only show some part of Fig. 1 and all different assemblies of dish structure shown in Fig. 5 and SRRI structure.For example, though in each bunch of TDMA (such as TDMA0) of dish, write down (SRRI+TDDS) or (TDFL+TDDS) as mentioned above, in the TDMA0 of Fig. 7 C, only show SRRI, and omitted TDFL and/or TDDS for simple consideration.Only show " open SRR tabulation " field 52 and " tabulation of the SRR entry " field 30 in the SRRI different field shown in Fig. 5 in addition.

The dish recording status of Fig. 7 C is as the situation of an open SRR (SRR#1) is only arranged in all disk area among Fig. 7 B.Shown in Fig. 7 C, in as Fig. 7 B, do not close when forming imperfect SRR#1 under the situation of session, generate the SRRI#1 (60a) relevant and it is recorded in the TDMA0 with SRR#1.In SRRI#1 (60a), SRR number (SRRI#1) of open SRR#1 can be recorded in its " open SRR tabulation " field 52a.In " tabulation of SRR entry " field 30a of SRRI#1 (60a), only there be a SRR entry 35a relevant with SRR#1.SRR entry 35a (the perhaps SRR entry 35b-35p of subsequent discussion) can have the above-mentioned SRR entry structure of Fig. 6 A or 6B.

In SRR entry 35a, because finally filled some part of SRR#1, " 1b is " as the status information of corresponding SRR#1 so just P_flag is changed to.Because SRR#1 is the initial SRR of open session #1, so S_flag is changed to " 1b " status information as corresponding SRR#1.

Fig. 8 A shows and receives the also session shutdown command at execution graph 7B step 2 place therein.In response to the session shutdown command, the zone that records user data on it is divided into independently closes SRR, and new session is created in the zone after being right after the user data recording areas.For example shown in Fig. 8 A, become at the area part of the whole user data in step 2 place and to form the complete S RR#1 (SRR that closes) that closes session #1 successively.In addition, recording areas does not just become the invisible SRR#2 (open SRR) that constitutes null session #2 successively in the identical moment.

Fig. 8 B shows the recording process of the dish recording status (SRRI) that matches with Fig. 8 A plate-like attitude.Because this SRRI is second SRRI that is recorded, so with this SRRI called after SRRI#2 (60b).And then SRRI#1 (60a) writes down SRRI#2 (60b) in TDMA0.Plate-like attitude for record diagram 8A, because an open SRR (SRR#2) is only arranged in the whole disk area and a situation of closing SRR (SRR#1) is only arranged, so the information about SRR#1 and #2 of writing down respectively among SRR number of record opening SRR#2 and " tabulation of SRR entry " the field 30b at SRRI#2 in " open SRR tabulation " field 52b of SRRI#2 is as SRR entry 35b and 35c.

Indicating it with the SRR entry (for example 35b) of shadow representation in Fig. 8 B (with other accompanying drawings) is the SRR entry of closing.Therefore, because user data not as yet in the new SRR#2 that creates, just the P_flag of SRR#2 entry (35c) is set to " 0b ".Because SRR#2 is the initial SRR of open session #2, just the S_flag of SRR#2 entry (35c) is set to " 1b ".

Fig. 9 A shows the step 4 that additionally is preserved for two open SRR of new record when dish is in Fig. 8 A condition.Therefore, the open SRR that creates recently is open empty SRR#2 and #3 and has by the NWA shown in the thick arrow.The result is that open session #2 comprises sky SRR#2 and #3 and invisible SRR#4.

Fig. 9 B shows the recording process of the dish recording status (SRRI) that matches with Fig. 9 A plate-like attitude.Because this SRRI is the 3rd SRRI that is recorded, so with this SRRI called after SRRI#3 (60c).Contiguous SRRI#2 (60b) writes down SRRI#3 (60c) in TDMA0.For the plate-like attitude of record diagram 9A, because the Zone Full of dish has SRR (SRR#2, the #3 of three openings, #4) with a situation of closing SRR (SRR#1), so in " open SRR tabulation " field 52c of SRRI#3 SRR number of the SRR of record opening (SRR#2, #3, #4).In " tabulation of SRR entry " field 30c of SRRI#3 record about the information of whole 4 SRR entries (SRR#1 to #4) respectively as SRR entry 35d to 35g.

Therefore, because about creating SRR#2 recently, the information of #3 and #4 is to be recorded in the SRRI#3 (60c) and as yet not at SRR#2, #3 and #4 go up user data, so the P_flag of corresponding SRR entry 35e, 35f and 35g is changed to " 1b ".But because SRR#3 and #4 are not the initial SRR of open session #2, and SRR#2 is conversation start SRR, and then the S_flag of SRR#2 entry 35e, SRR#3 entry 35f and SRR#4 entry 35g is changed to " 1b ", " 0b " and " 0b " respectively.

The step 5 of record data among empty SRR#2 that Figure 10 A shows at Fig. 9 A and the invisible SRR#4.Therefore, the first empty SRR becomes partial record SRR#2, and invisible SRR#4 then becomes imperfect SRR#4, but open empty SRR#3 does not change.Use is not write down SRR#2 with the user data of filling.Use the user data record and also use padding data to fill SRR#4.In the filling sector of SRR#4, Padding_flag is changed to " 1b ".

Figure 10 B shows the recording process of the dish recording status (SRRI) relevant with Figure 10 A plate-like attitude.Because this SRRI is the 4th SRRI that is recorded, so with this SRRI called after SRRI#4 (60d).And then SRRI#3 (60c) writes down SRRI#4 (60d).Dish recording status for Figure 10 A, because having three open SRR (SRR#2 to #4) and one, the Zone Full of dish closes SRR (SRR#1), so in " open SRR tabulation " field 52d of SRRI#4 (60d), write down SRR number (SRR#2 to #4) that opens SRR accordingly.In " tabulation of SRR entry " field 30d of SRRI#4 record about the information of whole 4 SRR entries (SRR#1 to #4) respectively as SRR entry 35h to 35k.

In this step, the position of SRR record item No. and open SRR is equal to the situation of Fig. 9 B.But owing to user data in specifying open SRR, this LRA information that has write down open SRR entry changes, and the value of P_flag also changes.In other words, be updated about the SRR#2 that write down and the information of #4.Because use is not write down SRR#2 with the user data of filling, so the P_flag of SRR#2 entry 35i remains " 0b ".Because use the user data record and fill SRR#4, then the P_flag of SRR#4 entry 35k becomes " 1b ".

Figure 11 A shows the step 6 that receives and carry out the session shutdown command under the plate-like attitude of Figure 10 A.Shown in Figure 11 A, but but before open SRR closes, use empty data to fill the extra recording section of open SRR or open the part of the extra recording section of SRR.As mentioned above, padding is an optional characteristic.As mentioned above when carry out filling, particular data (for example character code " CLSD ") can be used as padding data and carries out this filling in addition.

Before be the SRR#2 of open SRR, #3 and #4 become record SRR#2, the empty SRR#3 that closes and the complete S RR#4 that part is closed, and they form successively closes session #2.In session SRR#2 and #3, but keep extra recording areas, but it is become the SRR that closes by shutdown command.At this, optionally use empty data to fill some part.Therefore, bunch/all sectors of having filled empty data in the SRR (for example Fig. 4 B) all are changed to Padding_flag=1b.But even in this case, the LRA information that is recorded in the SRR entry is still indicated the end position that writes down actual user data.Empty as mentioned above data division does not influence determining of LRA position.Remaining outer course SRR#5 is the invisible SRR#5 that forms new open session #3 successively.

Figure 11 B shows the recording process of the dish recording status (SRRI) relevant with Figure 11 A plate-like attitude.Because this SRRI is the 5th SRRI that is recorded in the directorial area, so with this SRRI called after SRRI#5 (60e).And then SRRI#5 (60d) writes down SRRI#5 (60e) in TDMA0.Dish recording status for Figure 11 A, because only having an open SRR (SRR#5) and four, the Zone Full of dish closes SRR (SRR#1 to #4), so in " open SRR tabulation " field 52e of SRRI#5 SRR number of the corresponding open SRR of record (SRR#5) and from the SRR tabulation 52e of current opening, remove all SRR numbers of before having opened of being recorded in the SRRI#4 (for example the SRR#2 among Figure 10 B, #3 and #4).From " open SRR tabulation " field, remove SRR and mean that these SRR close.In " tabulation of SRR entry " field 30e of SRRI#5 record about the information of whole 5 SRR entries (SRR#1 to #5) respectively as SRR entry 351 to 35p.

Because use empty data to fill SRR#2 and #3 in response to shutdown command, filled padding data with at least a portion of indicating corresponding SRR so SRR#2 entry 35e and SRR#3 entry 35f become " 1b ".Because the LRA of SRR entry is the end position of user data physical record, so the LRA of SRR#2 to #4 is identical with the value of LRA in being previously recorded in SRRI#4 (60d).In addition, because user data on the new invisible SRR#5 that creates not as yet, so the P_flag of SRR#5 entry 35p is changed to " 0b ".Because SRR#5 is the initial SRR of new session #3, the S_flag of SRR#5 entry 35p is changed to " 1b ".

By Fig. 7 A to Figure 11 B as seen, SRRI is the information of the current dish recording status of indication.Record/playback apparatus must be checked the up-to-date SRRI (for example SRRI#5 in described example) that is lastly recorded in the management area when loading CD of the present invention.Because only be that up-to-date SRRI just correctly indicates the final entry state of this dish, so just may detect the position of the SRR of additional records.

Yet, the accident power-off when the use dish or this adjustment debit bad time, just can't correctly read the up-to-date SRRI of dish.At this moment, just need use not damage SRRI up-to-date among the SRRI and rebuild final recording status.According to the present invention, in the time that SRR will be closed, in padding, fill SRR, even the up-to-date SRRI then on this dish still can use the final entry state of this filling information reconstruction dish when in damaged condition.By it, just can recover the up-to-date SRRI and the current record state of this dish.

Figure 12,13A and 13B show according to the present invention in the method for CD-WORM identifying recording layer.The final entry state of this method assessment dish is even also can recover the up-to-date SRRI of this dish under the situation that up-to-date SRRI damages.Can use the final entry state that from this up-to-date SRRI, obtains to come executive logging/playback.

When concluding that corresponding SRRI is defect area and recorded information when unreliable, just thinks that SRRI damages.If up-to-date SRRI damages, this just means the final entry state that can not obtain dish from up-to-date SRRI.But so just can't learn the record position of dish.In the worst case, dish itself just can't re-use.

The invention provides a kind of when up-to-date SRRI damages the method for the final entry state of correct recovery dish.More specifically, Figure 12 is according to one embodiment of present invention, shows to be used to recover CD-WORM (such as BD-WO) final entry state and the method for executive logging/playback operation on dish.Described dish comprises above-mentioned dish structure and SRRI structure.Referring to Figure 12, if in optical recording/playback reproducer (device shown in Figure 14), be written into dish, just read directorial area (for example, TDMA0) in the record up-to-date SRRI.Just detect the SRRI that reads subsequently and whether damage (S10).

If up-to-date SRRI do not damage, then from up-to-date SRRI, obtain final quotation recording status (S21).Use up-to-date SRRI subsequently, but only carry out playback operation (S22) to extra recording areas executive logging and/or to recording areas.From up-to-date SRRI, obtain about these regional information.

On the other hand, damage, just determine not damage the up-to-date SRRI (S31) among the SRRI if step S10 determines up-to-date SRRI.Just read this up-to-date SRRI of damage (S32) subsequently.Can use the SRRI (S33) of the physical record recovering state damage of this up-to-date SRRI of damage and dish.Step S33 can be an optional step.Carry out playback operation (S34) to additional records district executive logging and/or to recording areas.From the up-to-date physical record state that does not damage SRRI and/or dish, determine about these regional information.After recording/playback step S34, just the recording status that record changes recently in directorial area is as new SRRI.

Figure 13 A and Figure 13 B show the example that recovers the step S33 of final entry state among Figure 12 when up-to-date SRRI (SRRI#5 in Figure 11 B example) damages.For convenience of explanation, will the SRRI recording method of Fig. 7 A to Figure 11 B be described as an example.

As shown in FIG. 13A, if SRRI is in normal condition, then SRRI#5 (60e) becomes the up-to-date SRRI of dish.But if SRRI#5 damages, then record/playback apparatus reads up-to-date SRRI in not damaging SRRI.In this example, SRRI#4 (60d) is the up-to-date SRRI that does not damage among the SRRI#1 to #4.

Can be from physical record state as determining among the SRRI#5 that is write (60e) that indicates Figure 11 B to be associated with the step 6 of Figure 11 A.Yet because SRRI#5 (60e) damages, therefore the up-to-date SRR information that can be detected by record/playback apparatus is SRRI#4 (60d).But SRRI#4 not necessarily carries the final entry state of this dish, because be that SRRI#5 carries these information.So, just need to compare the actual final entry state of SRRI#4 and dish in order not use the just final entry state of energy recovery dish of SRRI#5.This can realize in following description.

Record/playback apparatus (Figure 14 for example .) detects from the open SRR position of SRRI#4 and the LRA information that is associated.In the example of Figure 13 A, from " open SRR tabulation " field 52d of SRRI#4 (60d), determine to exist three open SRR#2, #3 and #4.Subsequently by the LRA field corresponding to the SRR entry of these open SRRs of visit from " tabulation of SRR entry " field 30d of SRRI#4 (60d), just can obtain LRA and use it for checking whether accordingly SRR be real open SRR.In this regard, only check the open SRR of identification in the field 52d of SRRI#4 (60d).Do not verify and record the position of closing SRR.Close SRR in case open SRR becomes, close SRR and just can't become open SRR again.The result closes SRR by checking whether each open SRR becomes, and just can recover final SRR information.

Under the situation of SRR#2 and #3 identification as the open SRR the field 52d of SRRI#4 (60d) in, just check among SRR#2 and the #3 each with definite can shown in Figure 11 A (reality final quotation recording status) after (in entry LRA field, identifying) LRA, whether record predetermined padding data (for example empty data).If detect filling, record/playback apparatus just determines that corresponding open SRR becomes the SRR that closes subsequently.

SRR#4 is being taken as be under the situation of the open SRR in the field 52d of SRRI#4, record/playback apparatus just checks whether SRR#4 has padding data (for example empty data) afterwards with the LRA that determines in Figure 11 A it (actual final quotation recording status).In the final quotation recording status of reality, can analyze this SRR#4 as open SRR.The zone afterwards, LRA position that can find SRR#4 equally is recordable, and promptly this zone is NWA.Subsequently in record/playback apparatus, the recording areas of just determining original SRR#4 be close SRR (new close SRR#4) but and the recording areas of only analyzing original SRR#4 as open SRR (new SRR#5).So just use above-mentioned analysis result to rebuild the content of impaired SRRI#5.In addition, but because be extra record position information (NWA) by record/playback apparatus executive logging operation information necessary, so just do not change and the old NWA position that is associated with new SRR#4, it is used that they just can be record/playback apparatus like this.

Figure 13 B shows the result of the up-to-date SRRI#5 that is recovered by above-mentioned Figure 13 A process.The final entry state of the realistic dish of this result.Therefore, record/playback apparatus writes down the up-to-date SRRI#5 (being as SRRI#6 (60f) at this moment) that selectivity is recovered once more in directorial area, but or only carries out record to extra posting field.SRRI#6 (60f) comprises " open SRR tabulation " field 52f of identification SRR#5 and has comprised separately " tabulation of SRR entry " field 30f corresponding to the SRR entry 35q to 35u of SRR#1 to #5.Even the SRR#5 that recovers be not recorded as under the situation of SRRI#6 equally, still from the NWA information of recovering executive logging and by be recorded to recover NWA the recording status that data changed record as new SRRI#6.

Figure 14 shows according to video disc recording/playback reproducer of the present invention.This device or other device or system that is suitable for can be used for realizing dish and/or SRRI structure and the method in this discussion as the present invention.

Referring to Figure 14, video disc recording/playback reproducer comprises and being used for to the video disc recording data with from the recording/playback unit 10 of optical disk playback data, and the controller 20 that is used for controlling recording/playback unit 10.All elements of record/playback apparatus all are that coupling is gone up in operation.Controller 20 transmits to recording/playback unit 10 and is used for the order that the special posting field to the SRR/ session on dish writes down or therefrom reproduces.Recording/playback unit 10 reproduces data according to the order of controller 20 to the dish record data or from dish.

Industrial applicibility

Recording/playback 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/playback unit 10.Because record/playback apparatus shown in Figure 14 can optionally carry out padding, so deviser's design record/playback reproducer more freely.Recording/playback unit 10 can be stored specific data automatically in underfilling operation.

Record and back method can be divided into two classes on CD.The first kind is the situation of Fig. 4 A to Figure 11 B, the method that relates to comprises: record data intactly on open SRR, comprise LRA bunch in force and fill the residue sector, and whether record identification carries out the information of filling or determining whether to fill this bunch to the residue sector, and identification information filled in the filling record when basis is closed SRR simultaneously.

Second class is to use the filling information of Figure 12 to Figure 13 B that the method for the impaired SRRI of efficient recovery is arranged.When closing SRR, just carry out the filling of SRR alternatively.Yet, can advantageously use this filling information restore data if SRR is carried out filling and closes SRR then.

To describe video disc recording/back method according to an embodiment of the invention in detail now.When being written in all record/playback apparatus as shown in figure 12, just read up-to-date SRRI to CD such as BD-WO as the up-to-date management information that is recorded among the TDMA.In addition, head and the SRR entry that is recorded in the SRRI in the up-to-date SRRI is read and is stored in temporarily in the storer 15 of recording/playback unit 10.

The up-to-date dish recording status of SRRI representative of storage.Can discern open SRR by the SRRI header information.By the SRR entry, can be with data storage in the whole zone of dish or can check the not existence and the position of recording status and open session.Equally, can discern this SRR and whether be filled with padding data.All these data can both be used when record and playback CD.

Subsequently, at the open SRR identifying recording layer (for example, user data) of appointment.When data by complete documentation in open SRR the time, use empty data to fill to comprise LRA bunch in do not write down the sector reason of stable and robust (for example for) and fill identification information Padding_flag and be set to " 1b ".Each is filled the sector, all is changed to " 1b " corresponding to the Padding_flag of each sector.If do not fill the sector, just corresponding subsequently Padding_flag is set to " 0b ".Similarly, when the SRR entry in the renewal SRRI, SRR status information P_flag is set to " 1b " and has at least part to be filled to represent corresponding SRR.

In addition, even when SRR closes according to the shutdown command of controller 20, but microcomputer 16 can be selected in filling or not be with and close recording areas (for example bunch) after filling.In these cases, the designer can design record/playback reproducer 10 uses padding datas to fill SRR automatically and need not just can unconditionally to close SRR from the filling order of controller 20.Above-mentioned function can be called as recording/playback unit 10 and " fill function automatically ".This automatically fills function and record/playback apparatus 10 by filling order and receive empty data and comparing filling SRR subsequently, can advantageously shorten the padding required time.

In addition, if change the SRR state by filling as mentioned above, just fill sector Padding_flag and be set to 1b according to each.In addition, P_flag is set to 1b in corresponding SRR entry.Different record/playback apparatus also can use these information.

Therefore just provide by the SRR type of the present invention's definition and definition and according to the record SRRI method of above-mentioned SRR type that is defined and definition.

Therefore just can use various record/playback apparatus to visit and work as shroud with desired function.

To describe in addition by recovering CD and write down the also second method of playback of data.When being written into CD in the record/playback apparatus, microcomputer 16 is just controlled be provided with the up-to-date SRRI in management area (such as TDMA) of pickup unit 11 reading and recording in respective disc.Microcomputer 16 determines whether this up-to-date SRRI damages.Damage if determine up-to-date SRRI, just as above described with reference to Figure 12,13A and 13B, estimate up-to-date SRRI and never damage the up-to-date SRRI of recovery among the SRRI.Become when closing SRR when will open SRR by shutdown command, the empty data of filling in the inspection dish, thus can recover up-to-date SRRI as mentioned above.

If up-to-date SRRI that recovers or original up-to-date SRRI do not damage, then recording/playback unit 10 detects the position that additionally can write down open SRR based on corresponding up-to-date SRRI, record data, receive the shutdown command of controller 20, close SRR but use empty data to fill the part of remaining extra posting field among the open SRR (or all) and represent that this SRR becomes.The dish recording status that record changes in directorial area is as new (up-to-date) SRRI.When once more being written into corresponding CD, just can from up-to-date SRRI accurately detect final dish recording status thereafter.

The method that is used to write down CD-WORM management information according to the present invention comprises SRR type and the conversation type that definition is new.If fill open SRR or close this SRR, will make to be provided with to fill identification information Padding_flag and it is recorded in to be filled the zone by filling.Other filling identification informations of record P_flag in the SRR entry.So in CD-WORM, can write down effectively and manage to management information with new physics structure.When after filling, closing SRR, the SRRI that can use filling information to recover to damage.

It should be appreciated by those skilled in the art and to make various modifications and change in the present invention.Therefore, 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. method that is used for records management information on recording medium, wherein said recording medium comprises the journal unit of being made up of at least one master record unit, and described at least one master record unit is made of a plurality of sectors, described method comprises:

But on the direction that the address increases, begin the user data journal in described journal unit from writing position;

When the border of the up-to-date record position of described up-to-date master record unit and described up-to-date master record unit did not match, the residue of using padding data to fill up-to-date master record unit did not write down the sector; And

Record is used for discerning the filling identification information which part of described at least one record cell is filled, and described filling identification information is made of a plurality of filling signs, and each is filled sign and all belongs to each sector respectively.

2. the method for claim 1 is characterized in that, described method also comprises:

When closing, described journal unit from open journal unit information, removes the journal unit marks.

3. method as claimed in claim 2 is characterized in that, described method also comprises:

But use described padding data to begin to fill one or more master records unit from new writing position; And

Writing down described filling identification information is filled to indicate one or more master records unit.

4. the method for claim 1 is characterized in that, but but the writing position in the described journal unit is moved to new writing position, but first sector that described new writing position is contiguous available master record unit.

5. one kind is used in the method that comprises records management information on the recording medium of at least one record cell, and described method comprises:

On the direction that increases in the address in described at least one record cell the journal data;

When stopping the alphabetic data record, use padding data to fill the residue non-recorded part of state-of-the-art record unit; And

Identification information filled in record on recording medium, and which part described at least one record cell of described filling identification information identification is filled.

6. method as claimed in claim 5 is characterized in that each record cell all is one bunch, and in filling step, uses padding data to fill all described up-to-date bunch remaining sectors of not writing down.

7. method as claimed in claim 6, it is characterized in that, in described recording step, described filling identification information comprises a plurality of filling signs of distributing to a sector of this bunch separately, and whether is filled described filling sign and is set to a particular value according to described allocated sector.

8. method as claimed in claim 6 is characterized in that, in described filling step, next sector appears in described filling.

9. method as claimed in claim 7 is characterized in that, each bunch all comprises 32 sectors, so there are 32 filling signs that correspond respectively to 32 sectors of this bunch.

10. method as claimed in claim 5 is characterized in that, the described filling identification information of record in the directorial area of described recording medium.

11. method as claimed in claim 5 is characterized in that, in described filling step, described padding data is zero.

12. a method that is used for records management information on the recording medium that comprises at least one journal scope (SRR), each SRR is made of at least one bunch, and described method comprises:

User data in SRR; And

When stopping the record of user data, use padding data to fill among the SRR up-to-date bunch residue posting field not.

13. method as claimed in claim 12 is characterized in that, in described filling step, described padding data is zero.

14. method as claimed in claim 12 is characterized in that, in described filling step, uses padding data to fill all described up-to-date bunch remaining sectors of not writing down.

15. a recording medium comprises:

By the journal unit that at least one master record unit is formed, described at least one master record unit is made of a plurality of sectors;

But on the direction that the address increases, begin the user data of journal in the described journal unit from writing position;

When the border of the up-to-date record position of described up-to-date master record unit and described up-to-date master record unit did not match, the residue that is recorded in up-to-date master record unit did not write down the padding data in the sector; And

Be used for discerning the filling identification information which part of described at least one master record unit is filled, described filling identification information comprises a plurality of filling signs, and each is filled sign and all belongs to each sector respectively.

16. recording medium as claimed in claim 15 is characterized in that, also comprises:

But from the padding data of new writing position opening entry in one or more master records unit; And

The filling identification information of indicating one or more master records unit to be filled.

17. recording medium as claimed in claim 15 is characterized in that, but but the writing position in the described journal unit moves to new writing position, but first sector that described new writing position is contiguous available master record unit.

18. a recording medium comprises:

At least one record cell;

The data of journal in described at least one record cell on the direction of address increase;

When stopping the journal data, be recorded in the padding data in the residue non-recorded part of state-of-the-art record unit; And

Be recorded in the filling identification information on the recording medium, which part described at least one record cell of described filling identification information identification is filled.

19. recording medium as claimed in claim 18 is characterized in that, each record cell all is one bunch, and uses padding data to fill all remaining sectors of not writing down of up-to-date bunch.

20. recording medium as claimed in claim 19 is characterized in that, described filling identification information comprises a plurality of filling signs of distributing to a sector of this bunch separately, and whether is filled described filling sign and is set to a particular value according to described allocated sector.

21. recording medium as claimed in claim 19 is characterized in that, next sector appears in described filling.

22. recording medium as claimed in claim 19 is characterized in that, each bunch all comprises 32 sectors, so there are 32 filling signs that correspond respectively to 32 sectors of this bunch.

23. recording medium as claimed in claim 18 is characterized in that, the described filling identification information of record in the directorial area of described recording medium.

24. recording medium as claimed in claim 18 is characterized in that, described padding data is zero.

25. a recording medium comprises:

At least one journal scope (SRR); Each SRR comprises at least one bunch;

Be recorded in the user data in the specific SRR among at least one SRR; And

When stopping the record of user data, be recorded in up-to-date bunch the residue padding data in the posting field not.

26. recording medium as claimed in claim 25 is characterized in that, described padding data is zero.

27. recording medium as claimed in claim 25 is characterized in that, uses padding data to fill all described up-to-date bunch remaining sectors of not writing down.

28. a device that is used for records management information on recording medium, wherein said recording medium comprise the journal unit of being made up of at least one master record unit, and described at least one master record unit comprises a plurality of sectors, described medium comprises:

The recoding/reproduction part, but begin the user data journal in described journal unit from writing position on the direction that is used for increasing in the address; When the border of the up-to-date record position of up-to-date master record unit and described up-to-date master record unit did not match, the residue of using padding data to fill up-to-date master record unit did not write down the sector; And record is used for discerning the filling identification information which part of described at least one master record unit is filled, and described filling identification information comprises a plurality of filling signs, and each is filled sign and all belongs to each sector respectively.

29. device as claimed in claim 28 is characterized in that, but but the writing position in the described journal unit moves to new writing position, but first sector that described new writing position is contiguous available master record unit.

30. one kind is used at the device that comprises records management information on the recording medium of at least one record cell, described device comprises:

The recoding/reproduction part, on the direction that is used for increasing in the address in described at least one record cell the journal data; When stopping the alphabetic data record, use padding data to fill the residue non-recorded part of state-of-the-art record unit; And identification information filled in record on recording medium, and which part described at least one record cell of described filling identification information identification is filled.

31. a device that is used for records management information on the recording medium that comprises at least one journal scope (SRR), each SRR comprises at least one bunch, and described device comprises:

The recoding/reproduction part is used for user data in SRR, and uses padding data to fill among the SRR up-to-date bunch residue posting field not when stopping the record of user data.