CN101079275B

CN101079275B - Recording medium and its recording and/or reproducing method, device and system

Info

Publication number: CN101079275B
Application number: CN200710104074XA
Authority: CN
Inventors: 朴容彻
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2004-03-18
Filing date: 2005-03-03
Publication date: 2010-11-10
Anticipated expiration: 2025-03-03
Also published as: CN101118756A; CN101079275A; CN100514480C; CN100592393C; CN1934644A

Abstract

A recording medium, such as a high-density and/or optical recording medium including segment information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection, data management and/or reproduction compatibility.

Description

The method, apparatus and system of recording medium and record thereof and/or reproduction

The application is is " on March 3rd, 2005 ", application number the applying date for " 200580008681.5 ", be entitled as dividing an application of " equipment and the method that the recording medium of segment information are arranged on it and be used to form, write down and reproduce this recording medium ".

Technical field

The present invention relates to managing physical access control (PAC) and record data, comprise the medium (for example, such as high density compact discs such as Blu-ray disc) of PAC and record data and be used for to these medium recording data and/or from the equipment and the method for these media reproducing data.

Background technology

For example medium such as CD can be used to write down lot of data.In the middle of available CD, in the middle of for example Blu-ray disc novel high density optical media (HD-DVD) such as (hereinafter referred to as " BD ") was being developed, it can allow record and/or store more high definition video and/or voice data.

BD also comprises can rewrite Blu-ray disc (BD-RE), write-once Blu-ray disc (BD-WO) and read-only Blu-ray disc (BD-ROM).

Current, the incompatibility that may exist between the driver that a problem of existing system is a different editions, for example, the driver with previous version of one group of previous ability may be difficult to and comprise from the mutual medium of the driver of at least one ability in one group of ability afterwards and carrying out alternately.

Summary of the invention

Exemplary embodiment of the present invention provides such as the PAC that comprises segment information on the media such as high density compact disc and uses the PAC comprise segment information to come to the medium recording data with from the equipment and the method for media reproducing data.

Exemplary embodiment of the present invention provides the physical access control that comprises record segment information thereon (PAC), is used to strengthen data protection, strengthens data management, improves reproduction compatibility, avoids data corruption and/or reduces unnecessary, repeated operation.

Exemplary embodiment of the present invention provides such as media such as high density compact disc and the equipment and the method that are used to manage the PAC that comprises segment information.In one exemplary embodiment, the present invention is directed to a kind of have be used for the recording medium of data structure of data field that management comprises the recording medium of at least one physical access control (PAC) bunch, this at least one PAC bunch comprises and is used to manage to the recording medium recording data and/or from the information of recording medium reproducing data, each PAC bunch comprises: the PAC stem, and it is each PAC bunch of common being suitable for of institute; And PAC specific information district, it comprises the information that is exclusively used in each PAC bunch, wherein the PAC stem comprises the hop count information that is used to identify hop count, and the section list area of each section that is used for the user data area of identification record medium.

In one exemplary embodiment, the present invention is directed to a kind of method in enterprising line item of recording medium or reproduction, comprise: write down or reproduce at least one physical access control (PAC) bunch, this at least one PAC bunch comprises and is used to manage to recording medium recording and/or from the information of recording medium reproducing, and each PAC bunch comprises a hop count information and a section item list; And if PAC bunch be unknown, and at least one section in the user data area of hop count message identification recording medium, then write down this at least one section and/or reproduce this at least one section from user data area to user data area.

In one exemplary embodiment, the present invention is directed to a kind of method from recording medium reproducing, comprise: be recorded in user data area on the recording medium based at least one physical access control (PAC) bunch reproduction, in this at least one PAC bunch each comprises several sections in the user data area, if wherein the hop count indication zero, then whole user data area is carried out described reproduction, otherwise in these several sections each is carried out described reproduction.

In one exemplary embodiment, the present invention is directed to a kind of being used for to recording medium recording and/or from the equipment of recording medium reproducing, comprising: driver is used to drive optical recording apparatus at the recording medium identifying recording layer or from the recording medium reproducing data; And controller, be used for coming the Control Driver record or reproducing data based at least one physical access control (PAC) district that comprises at least one physical access control (PAC) bunch, this at least one PAC bunch comprises and is used to manage to recording medium recording and/or from the information of recording medium reproducing, each PAC bunch comprises hop count information and section item list, if PAC bunch is unknown, and at least one section in the user data area of hop count message identification recording medium, then described controller reproduces this at least one section to the user data area record and/or from user data area.

In one exemplary embodiment, the present invention is directed to a kind of equipment that is used for from recording medium reproducing, comprising: driver is used to drive optical recording apparatus from recording medium reproducing; And controller, be used for coming Control Driver to reproduce data based at least one physical access control (PAC) district that comprises at least one physical access control (PAC) bunch, this at least one PAC bunch comprises and is used to manage to recording medium recording and/or from the information of recording medium reproducing, each PAC bunch comprises hop count information and section item list, described controller bunch reproduces the user data area that is recorded on the recording medium based on this at least one physical access control (PAC), in this at least one PAC bunch each comprises several sections in the user data area, if hop count indication zero, then described controller reproduces whole user data area, if and hop count does not indicate zero, then reproduce each in these several sections.

Should be appreciated that the present invention above general description and the following detailed description are exemplary and explanat, be intended to the further explanation that the invention provides for as claimed in claim.

Brief Description Of Drawings

Comprise that accompanying drawing is for the further understanding to exemplary embodiment of the present invention is provided, they are included and are constituted the application's a part, and accompanying drawing shows exemplary embodiment of the present invention, wherein,

Fig. 1 is the synoptic diagram that illustrates according to the PAC district on the high density compact disc of one exemplary embodiment of the present invention;

Fig. 2 is the synoptic diagram that illustrates according to the configuration in INFO2 district on the high density compact disc of one exemplary embodiment of the present invention and INFO1 district;

Fig. 3 illustrates the PAC on the high density compact disc of being recorded in according to one exemplary embodiment of the present invention;

Fig. 4 illustrates according to the PAC on the high density compact disc of one exemplary embodiment of the present invention;

Fig. 5 illustrates " the unknown PAC rule " field according to one exemplary embodiment of the present invention;

Fig. 6 illustrates according to the section district on the high density compact disc of one exemplary embodiment of the present invention;

Fig. 7 illustrates according to the PAC on the high density compact disc of another exemplary embodiment of the present invention;

Fig. 8 illustrates according to the PAC on the high density compact disc of another exemplary embodiment of the present invention;

Fig. 9 illustrates according to the PAC on the high density compact disc of another exemplary embodiment of the present invention;

Figure 10 illustrates the control information of distinguishing according to the section about on the high density compact disc of one exemplary embodiment of the present invention;

Figure 11 illustrates the control information of distinguishing according to the section about on the high density compact disc of another exemplary embodiment of the present invention;

Figure 12 illustrates according to the optical recording of one exemplary embodiment of the present invention and the block diagram of reproducer.

Implement best mode of the present invention

Exemplary embodiment of the present invention shown in inciting somebody to action in detail with reference to the accompanying drawings now.In the case of any possible, in institute's drawings attached, will use identical mark to identify same or analogous part.

Fig. 1 illustrates according to the PAC district on the high density compact disc of one exemplary embodiment of the present invention.

Referring to Fig. 1, can to the outer ring high density compact disc subregion be introducing district, data field and draw-out area from inner ring.Introducing the district can be INFO2 district and INFO1 district by further subregion, is used to write down various types of information on it.INFO2 district and INFO1 district can comprise PAC (physical access control) district.

For simplicity, the PAC district that distributes to the INFO2 district is labeled as the PAC2 district, and the PAC district that will distribute to the INFO1 district is labeled as the PAC1 district.Can write down original PAC above one in PAC2 district and the PAC1 district, and another can have the backup area of the copy that is used to write down original PAC.If write direction and be inner ring from dish to the outer ring, then original PAC is recorded in the PACII district, will be favourable in the PACI district and will back up that PAC is recorded in.

Can provide the PAC district to handle the problem that when the actuator device than older version can not detect function on the added dish that has with the function of the actuator device compatibility of more recent version, may take place.The PAC district can use one or more " unknown rule " to handle compatibility issue.

Can use " unknown rule " to come the predictable operation of console panel, the linearity replacement in for example basic reading and writing control etc., defectiveness district, logical overwrite etc.Also can provide a zone to be suitable for wherein with indication " unknown rule " on dish, for example, be used to define whole the dish or the section of certain part of dish etc., this will describe after a while in further detail.

Thus, by the definition panel, just can use than the actuator device of older version that " unknown rule " conduct interviews, and the dish of more recent version can reduce the unnecessary accessing operation than the actuator device of older version.

In addition; by definition accessible area on the physical areas of dish so that conduct interviews by using PAC than the actuator device of older version; just can protect the data field of the user data that is write down above having comprised more steadily; and/maybe can avoid or the unauthorized access of minimizing dish (for example, invasion).

Can comment from the angle of the feature write of high density compact disc and introduce INFO2 district and the INFO1 district that the inside the district has PACII and I district.

Fig. 2 is the synoptic diagram that illustrates according to the configuration in INFO2 district on the high density compact disc of one exemplary embodiment of the present invention and INFO1 district.

With reference to figure 2, for exemplary BD-RE high density compact disc, the INFO2 district can have 256 bunches, comprise 32 bunches of PACII district, 32 bunches of DMA (defect management) 2 districts that are used for defect management, above-noted 32 bunches of the CD of control information (control data) 2 districts, and/or 32 bunches of the BZ of buffer zone (buffer zone) 3 districts.

The INFO1 district can comprise 32 bunches of BZ2 district of buffer zone, can be used as 32 bunches of drive zone of the drive zone of memory driver specific information, 32 bunches of DMA1 district that are used for managing defect are used for 32 bunches of CD1 district of record controls information, and/or can be used as the BZ1-PACI district in PAC district.

For write-once high density compact disc (BD-R), the INFO2 district can have 256 bunches, comprise that 32 bunches PACII district, DMA2 district, CD2 district and BZ3 district are respectively arranged, and the INFO1 district comprises that 32 bunches BZ2 district, DMA1 district, CD1 district and/or BZ1-PACI district are respectively arranged, and drive 128 bunches of the district.

For read-only high density compact disc (BD-ROM), the INFO2 district can have 256 bunches, and comprising respectively has 32 bunches PACII district, CD2 district and BZ3 district, and 256 bunches of INFO1 district comprise that 32 bunches CD1 district and/or BZ1-PACI district are respectively arranged.

According to the rewritten feature of high density compact disc, can distribute each to be the PAC district of 32 bunches exemplary embodiment of the present to INFO2 district in introducing the district and/or INFO1 district.

In 32 bunches PAC district, a PAC can have one bunch, is used to write down a plurality of effective PAC.Be described with reference to Figure 3 a PAC as a bunch of exemplary configurations that writes down.

Fig. 3 illustrates the PAC on the high density compact disc of being recorded in according to one exemplary embodiment of the present invention.

A PAC with reference to 3, one bunches of sizes of figure (32 sectors) can comprise heading area and specific information district, and it is exclusively used in specific disk drive (for example, CD drive).The PAC heading area can have 384 bytes to be assigned to first sector of PAC, be used for record such as about " unknown PAC rule " and various types of PAC information such as information and section, and another of PAC district can write down the information (light) disk drive, that can be called as " known regimes " that is exclusively used in above regional.

Be described with reference to Figure 4 the exemplary configurations that is recorded in the PAC in the said structure.For simplicity, in this described, the specific PAC field that needs to describe in more detail needed referring to the accompanying drawing that these specific fields are shown.

Fig. 4 illustrates according to the PAC on the high density compact disc of one exemplary embodiment of the present invention.

Referring to Fig. 4, PAC can comprise the stem part that is applicable to all PAC jointly and the above-noted zone of information of driver special use.

Exemplary stem part can comprise " PAC_ID " of 4 bytes, " unknown PAC rule ", " entire--disc--flags ", " hop count " and/or 32 sections that 8 bytes are respectively arranged of 1 byte of 1 byte of 4 bytes, and promptly section 0 is to section 31.

" PAC_ID " can provide current PAC state and identification code, and for example, if " PAC_ID " comprises ' 0,000 00 00 ' position, then the current PAC of " PAC_ID " indication is not used; " if PAC_ID " comprise ' FFFF FF FE ' position, then the current PAC of " PAC_ID " indication district is because of defective or similar former thereby can not use; And " if PAC_ID " comprise ' FF FF FF FF ' position, then " PAC_ID " even the current PAC of indication before had been used, this PAC still can be used again.

By record " PAC_ID " in pre-determined bit (such as ' 54 53 54 00 ' position), can be with " PAC_ID " but as being used for whether definite dish is the code of the dish of current drive free access.That is, if current drive does not identify applied " PAC_ID " (may be current drive because of the former of mismatched or similar problem thereby can't discern the situation of current PAC), then ' 54 53 54 00 ' can be used as the code of the information of reference record in " unknown PAC rule " field.

As mentioned above, " unknown PAC rule " field can be used as the field of opereating specification that appointment can not be discerned the driver of current PAC, and this will further describe with reference to figure 5.

Fig. 5 illustrates " the unknown PAC rule " field according to one exemplary embodiment of the present invention.

Referring to Fig. 5, the controllable degree in each district can be by " unknown PAC rule " is enabled on the dish.In this example, the zone of control on " zone " the row indicating panel among Fig. 5, control types is shown in " control " tabulation, such as read/write etc., and the figure place that control is required is shown in " figure place " tabulation.In " figure place " row other can represent to have the dual layer discs of two recoding/reproduction faces.

For example, in Fig. 5 " zone " row, the read/write controllability in PAC district can represent with "

PAC district

1,2 " field, and the writing controllability and can represent with "

DMA district

1,2 " field of defect management.Write controllability and can represent that the read/write controllability of data field can be represented with " data field " field with " replacement cluster " field in the replacement district in defectiveness district, and the logical overwrite controllability can be represented with " logical overwrite " field.

Write controllability and be only applicable to rewritable disk BD-RE and BD-R, and the controllability of writing in the replacement district in defectiveness district also is applicable to rewritable disk BD-RE and BD-R.Therefore, various example feature of the present invention may depend on the rewritten feature of high density (light) dish.

Use above-mentioned technology, " unknown PAC rule " field makes it possible to be the zone of control on the driver given disc of mismatched.In addition, above-mentioned technology is also applicable to the visit of controlling according to user's selection the specific physical region on the dish.

Get back to Fig. 4, " entire--disc--flags " field can be used as indication PAC and be applicable to the field in whole panel, and " hop count " field is the field of the number that can represent that section that PAC is suitable for is distinguished.

In one exemplary embodiment, section from maximum number a to PAC that can distribute.In one exemplary embodiment, can distribute to PAC mostly be 32 sections most, and can be written to " section 0 " that 8 bytes are respectively arranged about the information of the section of being distributed and arrive in " section 31 " field.Each section first physical sector number (PSN) and tail PSN of distinguishing of being distributed that is write down above can comprising of " section 0 " to " section 31 " field.

Section is below described in more detail.Fig. 6 illustrates according to the section district on the high density compact disc of one exemplary embodiment of the present invention.

Referring to Fig. 6, as needs, the section district of maximum number (for example, 32) can be arranged on the high density compact disc, be used for it is used PAC.The section district of maximum number can be from " section 0 ".

In one example, CD drive can be come the position in identification section district by a PSN who writes the starting position that can indicate the section district that is distributed on " section " field in PACII and PACI district and the tail PSN that can indicate section rearmost position of being distributed of distinguishing.

In a kind of exemplary configuration, distributed a plurality of sections all do not need overlapping, and can bunch boundary specify beginning and end position.

Thus, in the exemplary embodiment, the present invention can provide a plurality of PAC to manage some (for example, 32) section district, and this will describe in more detail following.

Fig. 7 illustrates according to the PAC district on the high density compact disc of one exemplary embodiment of the present invention.

Referring to Fig. 7, can have in 32 bunches the PAC district (for example, the PAC district of INFO2 or INFO1) at one to write a plurality of effective PAC, each PAC has common bunch size.

In one exemplary embodiment, the stem part can comprise " PAC_ID " of 4 bytes, " the unknown PAC rule " of 4 bytes, " the PAC header label " of 1 byte, " totally mark " of 1 byte, " the definition hop count " of 1 byte and/or 32 respectively be that the section " section 0 " of for example 8 bytes arrives " section 31 ".

" PAC header label " can be used to be connected to each special-purpose PAC that all has the driver specific information bunch.Whenever there being new PAC to be added, " the PAC header label " that begin from (01) just can be incremented 1.

In this example, if the position be FF, then the indication do not have new PAC to be added, and if the position be 00, then the indication " PAC header label " be not used.

Fig. 8 illustrates according to the PAC on the high density compact disc of another exemplary embodiment of the present invention.

Referring to Fig. 8, the PAC of another exemplary embodiment can comprise stem part and the zone with the specific information that is exclusively used in driver according to the present invention, and stem partly also can comprise " PAC_ID " of 4 bytes, " the unknown PAC rule " of 4 bytes, " the PAC header label " of 1 byte, " entire--disc--flags " of 1 byte, " section collection byte address " of 2 bytes, " concentrating defined hop count " of 2 bytes and/or for respectively be 8 bytes be " for section keeps " field that 32 sections keep.

According to the PAC structure of another exemplary embodiment of the present invention can the section of comprising collection byte address.That is, for the zone that the section of being keeps, can in " concentrated defined hop count (N_Segs) " field, indication distinguish number for defined section, and can in " byte address of section collection " field, indicate the byte address of starting position.In this example, use defined section may be favourable continuously.

Fig. 9 illustrates according to the PAC on the high density compact disc of another exemplary embodiment of the present invention.

Referring to Fig. 9, the PAC of another exemplary embodiment can comprise the stem part according to the present invention, and zone with the specific information that is exclusively used in driver, and stem partly also can comprise " PAC_ID " of 4 bytes, " the unknown PAC rule " of 4 bytes, " the PAC header label " of 1 byte, " entire--disc--flags " of 1 byte, " byte address of principal piece collection " of 2 bytes, " the main defined hop count (N_M_Segs) of concentrating " of 2 bytes, " byte address of additional sections collection " of 2 bytes, " additional concentrate defined hop count (N_A_Segs) " of 2 bytes and/or be exclusively used in " the not use part among the special-purpose PAC " in the specific information district of particular drive.

The PAC structure of another exemplary embodiment can comprise principal piece collection and additional sections collection according to the present invention.Dispensing section additionally is so that can use in 32 section districts distribute the situation in multistage district more wanting.

In one example, the principal piece number that is defined by " the main defined hop count (N_M_Segs) of concentrating " is recorded, and its starting position can be recorded on " byte address of principal piece collection " field.That is the information on " byte address of principal piece collection " of being recorded in can play the effect of the pointer that points to defined principal piece district.

Defined additional hop count can use " the additional defined hop count (N_A_Segs) of concentrating " to come record, and its starting position can be recorded on " byte address of additional sections collection " field.

In this example, can provide the part that is not used of 1 bunch of size among the special-purpose PAC in the PAC district to the additional sections district, this additional sections district can be assigned to N_A_Segs.

Above exemplary PAC structure makes except 32 section zones, also can additional section district be managed.

Exemplary embodiment of the present invention is at distinguishing or the corresponding section control information of distinguishing that distributes following will stating by using specified PAC to write down about whole panel, whole section of distributing.

Figure 10 illustrates the control information about the section district on the high density compact disc according to one exemplary embodiment of the present invention.

Referring to Figure 10, the clauses and subclauses of available 8 bytes of section of being distributed represent that first physical sector number in its stage casing district can be 32 byte-sized, and the tail physical sector number can be 32 byte-sized.Therefore, the CD drive segment information that can pass through the PAC that write down obtains the positional information about the section district that is distributed.

In this example, as mentioned above, can manage plurality of sections district (one or more) by one or more PAC.If distributed at least one section district, the number in the CD drive section district that can determine to be distributed by " hop count " field then, and determine on this zone such as controllabilitys such as reading and writing and/or other similar operations by " data field " field of " unknown PAC rule ".

If do not distribute any section, and write down as described above and indicated PAC to be applicable to " entire--disc--flags " field in whole panel, then " data field " field of " unknown PAC rule " is used as the field such as accessibilities such as reading and writing and/or other similar operations of indication to the data field on the CD, if distributed section district to be used for writing " hop count " field, then " data field " field of " unknown PAC rule " can be used as the field of the accessibility in the whole section district that indication distributes.

In one exemplary embodiment of the present invention, except that unknown message, other can also be arranged about information, as be recorded in information on " section " field etc. the control in section district, this will be described following.

Figure 11 illustrates the control information about the section district on the high density compact disc according to another exemplary embodiment of the present invention.

The available clauses and subclauses of section are represented, and comprise " state 1 " field and " state 2 " field of the controllability that is used to indicate the correlation range district, be used to the section of expression district first physical sector number " PSN " field and/or be used to " tail PSN " field of the tail physical sector number that the section of expression distinguishes.

" state 1 " field can be represented with 4 control informations, be used to indicate the controllability in correlation range district; For example, " 0000 " of " state 1 " field can indicate the visit of reproducing or writing down in section district infeasible, " 0001 " of " state 1 " field can indicate the read-only access in section district feasible, " 0010 " of " state 1 " field can be indicated a write access in section district feasible, and " 0011 " of " state 1 " field can indicate the visit in section district feasible.

Thus, determine the accessibility in correlation range district, just can reduce unnecessary accessing operation, and in the situation of having distributed a plurality of sections districts, may command is to the visit of each section the section district by using " state 1 " field and " state 2 " field.

In this example,, and be not used at present because " state 2 " field can be the reserved field that uses in the future, so in one example, record " 0000 " position in " state 2 " field.

When having distributed when district section, may be inconsistent to the control in each section district with the controllability in the section district of " data field " field place definition of " unknown PAC rule ".

That is, for example, though feasible such as all types of visits such as read and write in " data field " to whole sections districts, also read-only feasible to the correlation range district in " section " field.

In this example, the read-only control in the section district of " section " field indication is feasible.That is, depend on the controllability of " data field ", can use with " section " field " with " condition makes the control in section district feasible.

Thus, if it is infeasible that " data field " field is indicated the visit that reads or writes in whole sections districts that distribute to " data field " field, then regardless of the controllability of " section " field, visit to whole sections districts also will become infeasible, even and " data field " field is configured to make the visit to whole sections districts feasible, if but the visit in single section district were configured to infeasible, then the visit to this section district will be infeasible.

As mentioned above, with regard to the PAC of high density compact disc, it writes high density compact disc BD-R and BD-RE that control section can be write applicable to physics, and can be depending on the feature write of high density compact disc.

By first physical sector number in record correlation range district on Figure 11 " PSN " field, and on Figure 11 " tail PSN " field the tail physical sector number in record correlation range district, just can indicate the position of this section district on coiling.

Figure 12 illustrates the block diagram according to the optical recording/reproducing apparatus of one exemplary embodiment of the present invention.

Referring to Figure 12, this optical recording/reproducing apparatus can comprise: data recording/reproducing device 10 is used for executive logging/reproduction on CD; And main frame or controller 20, be used for controlling recording/transcriber 10.In an example embodiment, data recording/reproducing device 10 can play the effect of above " CD drive " discussed in conjunction with the many exemplary embodiments of the present invention.

In one exemplary embodiment, main frame 20 provides the write command write to the specific region of CD or the reproduction instruction of reproducing from the specific region of CD to data recording/reproducing device 10, and data recording/reproducing device 10 is in response to carry out record to this specific region/from the reproduction of this specific region from the instruction of main frame 20.

Data recording/reproducing device 10 also can comprise: interface section 12, be used for executive communication, such as with the data of main frame 20 and the exchange of instruction etc.; Pick up part 11, be used for directly to CD write/from the optical disk reading data; Data processor 13 is used for from picking up part 11 received signals and recover required signal value, or the signal that will write is modulated to the signal that can be written on the CD; Servo segment 14 is used for control and picks up part 11 exactly from optical disc reading signal, or write signal on CD exactly; Storer 15 is used for storing various types of information, comprises management information and data temporarily; And microcomputer 16, be used for the various piece of controlling recording/transcriber 10.

A kind of illustrative methods of using this exemplary optical recording/reproducing apparatus to write down PAC on high density writable optical disc below will be described.

In case CD is inserted in the optical recording/reproducing apparatus, management information just can be read from CD, and is stored in the storer 15 of data recording/reproducing device 10, so that use in optical disc recording/reproducing.

Under this state, if the user wants to write on the specific region of CD, then main frame 20 with this as write command, thereby provide about the information of required writing position and the data that will write to data recording/reproducing device 10.

Microcomputer 16 in the data recording/reproducing device 10 can receive write command, management information from be stored in storer 15 determines whether the disc area that main frame 20 is wanted to write is the defectiveness district, and/or writes according to carrying out data from the write command of main frame 20 on the zone that is not the defectiveness district.

If determine the new feature that the data recording/reproducing device that comprised previous version is not provided write on whole the dish or the specific region of dish, thereby cause the data recording/reproducing device of previous version not detect, or if according to the set restriction of user, be intended to limit such as to the specific region of dish write or from the functions such as specific region reproduction of dish, then the microcomputer 16 of data recording/reproducing device 10 can write this regional control information conduct " unknown PAC rule " in the PAC district on the dish.The microcomputer 16 of data recording/reproducing device 10 also can write such as the PAC_ID that writes state and as the PAC information such as segment information of control information about the specific region of dish.

In this example, if the PAC that is write down comprises the control information in whole panel, then " entire--disc--flags " field can be recorded, if and the dish certain zone on distributed at least one section district, then be the visit of control to whole zone, the number in the section district that is distributed is recorded on " hop count " field, and can be recorded on " data field " field of " unknown PAC rule " such as control information such as accessibility and/or other relevant information.If want individually control section district, then Duan control and positional information can be recorded on " section " field.

PAC can be recorded in one bunch size in the PAC2 district in INFO2 district, and the copy PAC of PAC and PAC can be used as the backup be recorded in the PAC1 district in INFO1 district.

Microcomputer 16 can to servo 14 and data processor 13 positional information and the data in the zone or the PAC district of data have been provided above providing, thereby can finish and write by picking up the desired location of part 11 on CD.

In addition, a kind of recoding/reproduction has write the high density compact disc of PAC information by above-mentioned illustrative methods method below will be described.

In case CD is inserted in the optical recording/reproducing apparatus, management information just can be read from CD, and is stored in the storer 15 of record and transcriber 10, so that use in video disc recording and reproduction.

Information in the storer 10 can comprise the positional information in each included in the PAC district on dish district.Especially, the position of the effective PAC in the PAC district can be learnt from dish definition structure (DDS) information.After the position of having known effective PAC, the PAC_ID field that just can check PAC is to verify whether this PAC_ID is the PAC_ID that can identify.

If PACI_ID can identify, it is identical or do not have independent writing/reproduce restriction that then this method determines to have write the version of the version of the record of data and transcriber and current record and transcriber on dish, and according to the instruction executive logging/reproduction from main frame 20.

If PAC_ID can not identify, it is different with the version of current record and transcriber that then this method determines to have write the version of the record of data and transcriber on dish, and, come executive logging/reproduction according to order from main frame with reference to the recoding/reproduction restricted area on the dish that comprises " unknown PAC rule " and " section ".

Thus, microcomputer 16 according to from the instruction of main frame to servo 14 and data processor 13 positional information and data are provided, thereby can finish recoding/reproduction by picking up part 11 desired location place on CD.

As mentioned above, the method and apparatus that writes down in high density write-once CD and reproduce according to exemplary embodiment of the present invention can have following one or more advantage.

At first, can allow above-noted the data field of user data that more sane protection is arranged, for example, can prevent or reduce unauthorized access (for example, assault) by the dish accessible area of using PAC to define the driver of different editions.

The second, by the whole data field of use and management dish or the PAC of the part of data field, can improve the effect that writes down and/or reproduce data to high density compact disc from high density compact disc.

Industrial applicibility

Those skilled in the art can be obvious, can carry out various modifications and changes to above-mentioned exemplary embodiment of the present invention, and can not depart from the spirit and scope of the present invention.Thus, be intended to that the present invention is covered and drop in claims and the equivalents scope thereof to modifications and variations of the present invention.

Claims

1. one kind to recording medium recording and/or from the method for recording medium reproducing, comprising:

The record and/or reproduce at least one PAC bunch, this PAC bunch comprises the information that is used to manage to recording medium recording and/or reproduction, and described PAC bunch comprises the hop count field that is used to identify section section tabulation of distinguishing of described recording medium and represents the described PAC bunch of section number of distinguishing that is suitable for; And

When record and/or reproducer have early version so that described PAC bunch is unknown PAC bunch for described equipment, then control according to the record in the described section district of unknown rule subtend that comprises in described PAC bunch and/or from the reproduction in described section district, described unknown rule defines the controllability of described equipment to zone on the described recording medium.

2. the method for claim 1 is characterized in that, described section tabulation comprises each the start address information and the end address information in described section district.

3. method as claimed in claim 2 is characterized in that, the described start address information and the end address information in each section district have 4 bytes respectively.

4. the method for claim 1 is characterized in that, described method also comprises: come the identification section district according to each start address information and the end address information that is included in described section district in described unknown PAC bunch.

5. the method for claim 1 is characterized in that, described unknown rule comprises the data position in described section district, and the indication of described data position is for each the described section action that the district is available.

6. method as claimed in claim 5 is characterized in that, described available action comprises reads and/or write.

7. one kind is used for comprising to recording medium recording and/or from the equipment of recording medium reproducing:

Opticator is used for writing data and/or from described recording medium reading of data to described recording medium; And

Controller, be used for controlling described opticator based at least one PAC bunch, described PAC bunch comprises the information that is used to manage to recording medium recording and reproduction, and described PAC bunch comprises the hop count field that is used to identify section section tabulation of distinguishing of described recording medium and represents the described PAC bunch of section number of distinguishing that is suitable for; And

8. equipment as claimed in claim 7 is characterized in that, described section tabulation comprises each the start address information and the end address information in described section district.

9. equipment as claimed in claim 8 is characterized in that, the described start address information and the end address information in each section district have 4 bytes respectively.

10. equipment as claimed in claim 7 is characterized in that, described controller comes the identification section district according to each start address information and the end address information that is included in described section district in described unknown PAC bunch.

11. equipment as claimed in claim 7 is characterized in that, described unknown rule comprises the data position in described section district, and the indication of described data position is for each the described section action that the district is available.

12. equipment as claimed in claim 11 is characterized in that, described available action comprises reads and/or writes.

13. one kind is used for comprising to recording medium recording and/or from the system of recording medium reproducing:

Host machine part is used to produce to described recording medium recording and/or from the order of described recording medium reproducing; And

To described recording medium recording and/or from the equipment of described recording medium reproducing, it comprises according to described order:

Opticator is used for writing data and/or from described recording medium reading of data to described recording medium; With

Controller, be used for controlling described opticator based at least one PAC bunch, described PAC bunch comprises the information that is used to manage to recording medium recording and/or reproduction, and described PAC bunch comprises the hop count field that is used to identify section section tabulation of distinguishing of described recording medium and represents the described PAC bunch of section number of distinguishing that is suitable for; And has early version so that described PAC bunch is unknown PAC bunch for described equipment when record and/or the equipment that reproduces, then control according to the record in the described section district of unknown rule subtend that comprises in described PAC bunch and/or from the reproduction in described section district, described unknown rule defines the controllability of described equipment to zone on the described recording medium.

14. system as claimed in claim 13 is characterized in that, described section tabulation comprises each the start address information and the end address information in described section district.

15. system as claimed in claim 14 is characterized in that, the described start address information and the end address information in described section district have 4 bytes respectively.