CN101051502B - Method for the recovery of a damaged table of contents in an optical disc - Google Patents
Method for the recovery of a damaged table of contents in an optical disc Download PDFInfo
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- CN101051502B CN101051502B CN2007100896777A CN200710089677A CN101051502B CN 101051502 B CN101051502 B CN 101051502B CN 2007100896777 A CN2007100896777 A CN 2007100896777A CN 200710089677 A CN200710089677 A CN 200710089677A CN 101051502 B CN101051502 B CN 101051502B
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Abstract
A method for generating a recovered table of contents (TOC) for an optical disc having an damaged TOC and a predetermined file system includes selecting a recovering session on the optical disc; determining a recovering session starting location corresponding to a first SRR starting location in the recovering session; determining if the recovering session is a closed session; and if the recoveringsession is a closed session: determining a data size of the recovering session; calculating a next session starting location immediately following the recovering session by adding the data size of the recovering session, a temp-leadout size of the recovering session, and a temp-leadin size of the next session to the recovering session starting location; and constructing the recovered TOC by including information of recovering session and the next session starting location.
Description
Technical field
The present invention relates to a kind of light memory device, relate in particular to a kind of CD content table (table of contents, method TOC) of having damaged in the CD of restoring.
Background technology
But can write CD provides a kind of Portable, can bear and the data storing of elasticity utilization and the form of data transmission economically for the user.Common disk format then includes Blu-ray Disc (Blueray disc (BD)), high-density digital video disc (High Density DVD (HD-DVD) disc), Digital video disc (DVD) and general CD (CD) now, though there is above-mentioned multiple different disk format at present on the market, yet most of CD still has similar characteristic and framework.In addition, the common burning of data in a plurality of sections (session) that can write CD, and for the high-density digital video disc with can write formula Digital video disc (DVD-R), section one speech then is referred to as border (Border).Section can be open section (open session), be to store other data again in the same section, or closed session (closed session), be to increase other data again in the same section, and can not have more than one open section in the single CD, and only there is last section to have an opportunity to become open section on this CD.
The front and rear part of each section is then surrounded by temporary transient Lead-In Area (temp-lead-in area) and temporary transient leading-out zone (temp-lead-out area) respectively, wherein this temporary transient Lead-In Area is positioned at before this section recorded data, and this temporary transient leading-out zone then is positioned at after this section.Generally speaking, be above-mentioned temporary transient Lead-In Area/temporary transient leading-out zone provide buffer area between the continuous section (yet, can write formula Blu-ray Disc (BD-R) for single, the front and rear part of each section is not surrounded by temporary transient Lead-In Area and temporary transient leading-out zone).In addition, each closed session should include the archives economy (filesystem) that is used for managing the data in each section, and close (Close session) before at present employed section, host computer system (host system) then can write user zone (User data Area) to the archives economy data according to the specification of this archives economy and write down archives configuration information (file distribution information), thereby reaches the purpose of the data in each section of management.At dissimilar disk formats, general common archives economy specification include universal disk format (Universal Disc format, UDF) and the ISO09660 form.
Section on the CD can further be divided into a plurality of sub-segments (segment) in order to the storage particular data, and according to employed dissimilar CD, those sub-segments have different titles.For the BD CD, but claim sub-segments be continuous posting field (Sequential Recording Range, SRR); For the DVD+R CD, the title sub-segments is fragment (fragment); For HD-DVD-R CD and DVD-R CD, the title sub-segments be posting field (recording zone, RZone); And say for the CD-R CD, claim that sub-segments is disc track (track).In order to simplify following narration, but only utilize continuously posting field to be referred to as the sub-segments that has different titles under above-mentioned all different discs types in this manual; In addition, it should be noted, but can include a plurality of posting fields continuously in the single section.
In addition, about each individual section (including its configuration and state) but and continuously the information of posting field be recorded in CD content table (table of contents, TOC) in, and according to the entity disc specification of CD, its CD content table can be held reference position and this optical disc data form of each section.For the BD CD, but the data of its CD content table are with continuous posting field information (Sequential RecordingRange Information, SRRI) form is stored in temporary transient disc management area (Temporary DiscManagement Area, TDMA) in an or disc management area (Disc Management Area, DMA) in, and for the DVD+R CD, the data of its CD content table are then with section disc control block (session disc control block, SDCB) form is stored in the CD content table section, in addition, for HD-DVD-R and DVD-R CD, the data of its CD content table are with record management data (Recording Management Data, RMD) form is stored in the record management zone, and for the CD-R CD, then be with the CD content tableau format be stored in burning information storage zone (programmemory area, PMA) in.
Under the situation of the continuous burning of CD, but its CD content table also provides in last open section first pairing position of posting field reference position continuously, and this position can be used to determine an initial position in the next open section to reach the demand of continuous burning.
When host computer system or computing machine desire access one CD, at first must ask CD-ROM drive fetching optical disk contents table, and after reading this CD content table, this CD-ROM drive can be back to the reference information of this CD content table this host computer system, then this host computer system can identify the data of section and continuous posting field by the reference information of this CD content table that parses (parsing) but asked, wherein more important packet contain first section reference position (but in this CD a certain section first continuously the reference position of posting field be the reference position of pairing particular section), the reference position of the reference position of last closed session and last open section, those reference positions are used as the reference frame of the performed read-write running of follow-up CD.
Yet under the probability of chance, because the defective of disc itself (for example the optical disc surface scratch or the laser light of this CD-ROM drive are subjected to the influence that the optical disc surface dust disturbs), this CD-ROM drive possibly can't read the CD content table on this CD; When in case this kind situation takes place, some data or the section of this CD-ROM drive on can't this CD of access, and the host computer system that this CD-ROM drive also will respond in the error messages request extremely at present can't read this CD content table to inform, so according to having damaged the zone that maybe can't read in this CD content table, this CD-ROM drive may with reference to and read some data area in this CD.In addition, this host computer system also possibly can't receive the information of the up-to-date CD content table that has upgraded, therefore, is used as reference frame owing to lack last closed session information, and this CD-ROM drive can't suitably be carried out follow-up read-write running on CD.
As mentioned above, the integration of correlator and the seal operation of inclining be usually by serving receiving processor 110 controls of all or several passages, and promptly the starting point and the terminal point of scope integral time (correlation value calculation time initial with finish) only limit to the preset time point.Limit of integration may not be complementary with the signal waveform of input, and may therefore produce the mismatch error value that maximal value is 0.5ms.This error comprises the GPS L1 C/A signal of 20 ms to an information unit (as a data bit), and is not poor; But for a SBAS signal (an one information symbol position comprises 2ms), this is serious problems.
Summary of the invention
Therefore one of purpose of the present invention is to set up recovery back CD content table by the CD content table of damaging wholly or in part, to solve the above-mentioned problem of being mentioned.
According to one embodiment of the invention, it discloses a kind of method that is used for the CD with original disc contents table and predetermined archives economy is produced recovery back CD content table.This method includes: choose one and restore section on this CD; But determine first the continuous pairing recovery section of posting field (SequentialRecording Range) reference position reference position in this recovery section; According to corresponding to this indicated value of restoring the archives economy of section, determine whether this recovery section is closed session; And if this recovery section is a closed session, then: the size of data that decides this recovery section by the capacity information (volume information) of resolving archives economy; The temporary transient leading-out zone size of this size of data by will restoring section, this recovery section and the temporary transient Lead-In Area size of next section add to this recoverys section reference position and calculate and be next to this recovery section this next section reference position afterwards; And set up this recovery back CD content table by the information that adding includes this recovery section and this next section reference position.
According to another embodiment of the present invention, it discloses a kind of being used in addition the CD with original disc contents table and a predetermined archives economy is produced the method for restoring back CD content table.This method comprises carries out the following step repeatedly: (a) choose a recovery section on this CD; (b) but determine in this recovery section first pairing recovery section of posting field reference position reference position continuously; (c) according to corresponding to this indicated value of restoring the archives economy of section, determine whether this recovery section is closed session; And if this recoverys section is a closed session, then: (d) capacity information by the parsing archives economy decides the size of data of this recovery section; (e) but the temporary transient Lead-In Area size of the temporary transient leading-out zone size of this size of data by will restoring section, this recovery section and next section adds this recoverys section reference position calculates and be next to first continuous pairing this next section reference position of posting field reference position in this recoverys section this next section afterwards; (f) information that includes this recovery section and this next section reference position by adding is set up this recovery back CD content table; And (g) choose this next section for this recovery section and determine this next section reference position for this recovery section reference position of this recovery section to carry out next time computing repeatedly.
Description of drawings
Fig. 1 is used for restoring the synoptic diagram that CD has been damaged the CD content table for one embodiment of the invention.
Fig. 2 is the operational flowchart of the method for one embodiment of the invention.
Fig. 3 is the operational flowchart of the method for a preferred embodiment of the present invention.
Embodiment
Not having any mechanisms known at present is used to effectively restore and damages the CD content table that maybe can't read.Generally speaking, because the cost of CD is quite cheap, make that the user can only carry out burning again and abandon defective CD on another CD when if disc itself has defective; Yet, if be recorded in raw data on this defective CD can't obtain for a certain reason the time, the user then, this Zhang Guangpan obtains the source, so must manage to restore the CD content table that this has damaged CD this moment because may becoming the unique data of raw data.
If the CD content table section is found and damages in the time of maybe can't reading, CD-ROM drive possibly can't read and access is stored in the interior data of this CD, similarly, host computer system also possibly can't receive the reference position of the up-to-date CD content table information of having upgraded the reference position that obtains last closed session respectively and last opening section to carry out data read and follow-up write-in program.Therefore, no matter whether the interior data of this CD have reached the maximum storage space that it can take, and extra information may be stored in this CD.For head it off, the invention provides the method that the original disc contents table that maybe can't read has been damaged in a kind of recovery.
The present invention utilizes to rebuild a substitute disc contents table (replacement TOC) from the obtained information of the archives economy of this CD, wherein this substitute disc contents table can be used as the reference frame of follow-up host computer system running, in addition, if the data on this CD can be write by this CD-ROM drive, then this CD-ROM drive also can with the CD content table record after rebuilding on this CD to replace the CD content table that damage.Therefore, can't utilize when host computer system and to have damaged that the CD content table comes acquisition data and also possibly can't write data the time to this CD, CD content table after use is rebuild can allow this host computer system can capture the data on this CD and write data to this CD, so can restart the running on this CD, and the user also can continue access and use it to desire the data of optical disk of access.
The present invention uses the archives economy that is contained in this CD to manage the interior data of each section.Whether whether the existence of checking the indicated value (indicator) of this archives economy can demonstrate section has been closed and has not been allowed data burning or still open and can carry out data burning, but can't write down again in the wherein buttoned-up burning section and can not store other posting field continuously in any data or the buttoned-up burning section again, otherwise, but open section then can hold other posting field continuously.This archives economy also includes capacity (volume) (wherein the capacity of each section is meant its employed storage area) information of each section, and by using the capacity information of a particular section, the present invention can further derive the size of data (data size) of a recovery section (recovering session) according to the specification of this archives economy.
Archives economy for some particular type, the amount of capacity of particular section equals the size of data of this section, and for the archives economy of other types, the amount of capacity of this particular section represents that then reference position by first section is up to comprising the size of data of this section at present.In method proposed by the invention, the amount of capacity information that the amount of capacity of desire reparation closed session is added previous closed session can be used to derive the size of data that desire is repaired closed session, and in the narration of the reconstruction algorithm that restores the CD contents table, the amount of capacity of this closed session then is with the reference position that decides next section.
Fig. 1 is a synoptic diagram of having damaged the CD content table in the recovery CD of one embodiment of the invention.As 1 shown in Figure 1, it shows on CD the example of section configuration 100 continuously.Section configuration 100 includes the closed session 120 that is surrounded by temporary transient Lead-In Area 110 and temporary transient leading-out zone 130 continuously, wherein the reference position 115 of closed session 120 is to be positioned at after the temporary transient Lead-In Area 110, next section then is the recovery section 150 (it is surrounded by temporary transient Lead-In Area 140 and temporary transient leading-out zone 160) with reference position 145, and after restoring section 150, then be the temporary transient Lead-In Area 170 and the reference position 175 thereof of open section 180.The archives economy of this CD also provides corresponding to the amount of capacity 102 of closed session 120 and corresponding to the amount of capacity 105 of restoring section 150.
In the present embodiment, restoring section 150 also is closed session, yet, suppose that at this this CD content table damages, so only closed session 120 is recognized as closed session, arbitrary data after the closed session 120 then is considered as open section mistakenly, therefore, has originally damaged and reference position 115 and reference position 145 (145 hypothesis reference positions are the reference position of open section) that only the cognizable CD content table of part will provide closed session 120.In the present embodiment, up to finding out and confirm as before last section (its for open section) pointing out to be stored in the end position of data on the CD, need find out the reference position of each follow-up section earlier, CD content table after the reference position of those different sections of being found out then then can be used to set up and restores.
Moreover, when this CD-ROM drive is ready for when reading, because the cognizable CD content table of only part that damage or disc defective are caused, restore section 150 and at first can be assumed to open section earlier, and also demonstrate recovery section 150 (restoring section 150 is to be connected in after last closed session that can detect 120) in the cognizable CD content table of this part with reference position 145, then then can confirm to restore section 150 and whether be open section or closed session really.Afterwards, can be examined to confirm to restore the state of section 150 corresponding to resulting indicated value in the archives economy that restores section 150, in this case, this indicated value will be confirmed as closed session restoring section 150, therefore, the reference position (at present still unknown) that need move to next section provide can complete reconstruction CD content table extra starting point.
By this archives economy, restore section 150 and can be confirmed to be closed session, method provided by the present invention then then can continue to find out the reference position of next section, its implementation is the size of data of restoring section 150 by determining earlier, then this size of data can be added to temporary transient leading-out zone 160 that restores section 150 and the temporary transient Lead-In Area 170 of opening section 180, wherein also be to provide temporary transient leading-out zone 160 and temporary transient Lead-In Area 170, and the summation of these three numerical value will be provided in to restore a relative reference after the reference position 145 of section 150 according to pointing out where the reference position of next section is positioned at by the disc physical size of section separately.In brief, the reference position 175 of follow-up open section 180 reference position 145 that will equal to restore section 150 adds resulting result after the size of temporary transient Lead-In Area 170 of the size of the temporary transient leading-out zone 160 that restores section 150 size of data own, restores section 150 and open section 180.
The size of data of restoring section 150 is according to this archives economy and by itself amount of capacity 105 decisions.According to specific archives economy, amount of capacity 105 may equal corresponding to the size of data of particular section or may be equal to reference position from first section begins size of data till comprising this particular section.With the latter, only need that amount of capacity 105 is deducted the reference position 145 of restoring section 150 and just can obtain to restore the equal proportion size of data that section 150 is had.
Utilize the proper data size of the recovery section of being derived 150, only need to be added to this size of data and reference position 145 with restoring the temporary transient leading-out zone 160 of section 150 and the temporary transient Lead-In Area 170 of open section 180, the absolute reference position 175 of next section (it is open section) 180 can be provided thus.The reference position 175 of the information (size of data) of restoring section 150 and open section 180 can be added to and restore in the CD content table of back and finish the reposition routine of a part, then, method provided by the present invention can be checked from the obtained indicated value of archives economy of open section 180 and confirm whether open section 180 states own are open section or closed session, in the present embodiment, open section 180 is an open section really, and method provided by the present invention is then successfully finished by the CD content table that before may damage and reconstructed CD content table after the recovery.
Otherwise, previous steps is not if be open section with an open zone segment acknowledgement, method then provided by the present invention then can be handled by the size of data of the present section of decision (promptly open section 180) and move to next section, and the reference position of coming calculated for subsequent section (not demonstrating) by said procedure up to an open zone segment acknowledgement for open section till.
Use the above-mentioned method of mentioning, disc entity and the archives economy information in addition that need not carry out extra burning or use existing CD to be had are restored the CD content table of having damaged.And in the reposition routine of CD content table, only need to confirm to come between adjacent sections, to move to handle according to disc physical size and archives economy specification thereof.
In the above-described embodiments, this open section follows closely after first selected recovery section, yet, in fact be not this situation always to occur.Therefore, in another embodiment of the present invention, carry out the above-mentioned program of being mentioned at adjacent segments on this CD with a cumulative reiteration ground, till this recovery section is confirmed to be an open section, utilize this mode, above-mentioned flow process then can continue to carry out and identify the reference position of each section till finding out open section.
Yet when this CD content table fully can't identification maybe can't read, the user may wish to open above-mentioned program by the starting point of data of optical disk.Therefore, in above-mentioned another embodiment that mentions, can select the reference position that first section on this CD is used as restoring section and decides this first section according to the user data area reference position of this CD.Utilize this kind mode, this first section will become the recovery section, and the reposition routine of above-mentioned each section then can continue to carry out in order, till determining last open section.In addition, in other embodiments, also can be according to selected last the cognizable closed session section afterwards that is connected in immediately of original disc contents table for restoring section, because the reference position that has identified in the original disc contents table need not restored, therefore can promote the efficient when carrying out reposition routine.
Fig. 2 is the operational flowchart of the method 200 of one embodiment of the invention.If can reach identical result in fact, do not need necessarily to abide by among Fig. 2 the sequence of steps shown in the method 200 and carry out, and its step also not necessarily to carry out continuously, promptly other step also can be inserted in wherein.Method 200 comprises following steps:
Step 210: one restores section on the selected CD.
Step 220: but determine in this recovery section first reference position of the pairing recovery section of reference position of posting field continuously.
Step 230: whether the existence of the indicated value by checking the pairing archives economy of this recovery section decides whether this recovery section is closed session; If this recovery section is a closed session, then follow execution in step 240.
Step 240: obtain the size of data that amount of capacity decides this recovery section by the capacity information of resolving its archives economy.
Step 250: the reference position that the temporary transient leading-out zone size of the size of data by will restoring section, this recovery section and the temporary transient Lead-In Area size of this recovery section add to this recovery section is calculated the reference position that is next to the next section behind this recovery section.
Step 260: the information of the reference position of next section after comprising this recovery section and be next to this recovery section by adding is set up and is restored back CD content table.
Fig. 3 is the operational flowchart of the method 300 of a preferred embodiment of the present invention.If in fact also can reach identical result, do not need necessarily to abide by the sequence of steps shown in the method 300 of Fig. 3 and carry out, and the step shown in the method 300 also not necessarily will carry out continuously, that is other step also can be inserted in wherein.Method 300 includes following steps:
Step 310: choose a section that is next to after the last cognizable closed session according to an original disc contents table and be used as one and restore section.
Step 320: the reference position that decides this recovery section according to this original disc contents table.
Step 330: whether the existence of the indicated value by checking the pairing archives economy of this recovery section decides whether this recovery section is closed session.If this recovery section is a closed session, then follow execution in step 340; Otherwise then execution in step 380.
Step 340: define the size of data that the amount of capacity that calculates this recovery section decides this recovery section according to this archives economy.
Step 350: the reference position that the temporary transient leading-out zone size of the size of data by will restoring section, this recovery section and the temporary transient Lead-In Area size of next section add to this recovery section is calculated the reference position that is next to next section behind this recovery section.
Step 360: the information that comprises the reference position of this recovery section and this next section by adding is set up recovery back CD content table.
Step 370: choose this next section and be used as the reference position of this recovery section, and get back to step 330 as this recovery section and the reference position of choosing this next section.
Step 380: replace the original disc contents table with this recovery back CD content table.
Utilize above-mentioned flow process, method provided by the present invention can be restored and damaged in the CD or the CD content table that can't read.When the situation of the actual generation of the CD content table in CD scratch or damage or this CD content table can't be read by CD-ROM drive, restore back CD content table so that user's access and write data to this CD but method proposed by the invention can produce according to the original disc contents table, its major part then is with reference to the archives economy of this CD and uses the zone that temporarily can read of this CD content table to be finished.Utilize this mode, method proposed by the invention can be derived the reference position of any section that can't identification in the original disc contents table, then then its reference position can be added to restore in the CD content table of back.In addition, if if possible, can be then write dish and replace the CD content table damaged on this CD and can not produce other problem or mistake when this CD of access to allow host computer system to restore back CD content table, and even this recovery back CD content table can't be replaced the CD content table of having damaged on this CD, host computer system still can utilize this recoverys afterwards the information of CD content table come all sections on this CD of access.
Claims (21)
1. one kind is used for the CD with original disc contents table and predetermined archives economy is produced the method for restoring back CD content table, and this method includes:
(a). on this CD, choose one and restore section;
(b) but. determine in this recovery section first pairing recovery section of posting field reference position reference position continuously;
(c). the indicated value according in the archives economy that restores section corresponding to this determines whether this recovery section is closed session; And
(d). if this recovery section is a closed session, then carry out following step (e), (f), (g):
(e). according to corresponding to this archives economy that restores section, determine the size of data of this recovery section;
(f). the temporary transient leading-out zone size of this size of data by will restoring section, this recovery section and the temporary transient Lead-In Area size of next section add to this recoverys section reference position and calculate and be next to this recovery section next section reference position afterwards; And
(g). the information that includes this recovery section and this next section reference position by adding is set up this recovery back CD content table.
2. method according to claim 1, wherein, the described step of choosing the recovery section includes first section of choosing on this CD and is used as this recovery section; And the step of decision recovery section reference position includes
Reference position according to user's data of this CD decides this recovery section reference position.
3. method according to claim 1, but wherein this original disc contents table be damage, only partial content identification or can't be read by a CD-ROM drive.
4. method according to claim 3, it includes in addition:
Choose this recovery section with as the section that is next to after the last cognizable closed session according to this original disc contents table; And
Decide this recovery section reference position according to this original disc contents table.
5. method according to claim 1, it includes in addition:
If this recovery section is open section, the information that includes this recovery section reference position by adding is set up this recovery back CD content table.
6. method according to claim 1, it includes in addition:
(i). according to corresponding to the indicated value in the archives economy of this next section, determine whether this next section is closed session; And
(j). as if this next section is closed session, then execution in step (k), (l), (m):
(k). according to defining the size of data that the amount of capacity that calculates this next section decides this next section by predetermined archives economy; (l) but. add this next section reference position by a temporary transient Lead-In Area size and calculate first continuous pairing follow-up section reference position of posting field reference position in the follow-up section that is next to this next section the temporary transient leading-out zone size of this size of data of this next section, this next section and the follow-up section of this next section; And
(m). include this next section by adding and set up this recovery back CD content table with the information of this follow-up section reference position.
7. method according to claim 1, it is with cumulative order the adjacent segments on this CD to be carried out described step (a) and (b), (c), (d), (e), (f), (g) repeatedly, till this recovery section is open section.
8. method according to claim 1, it includes in addition:
If this recoverys section is closed session, utilization is corresponding to derive this size of data of this recovery section of the amount of capacity of defined this recovery section of this archives economy of this recovery section.
9. method according to claim 1, it includes in addition:
If this recovery section is a closed session, when representing reference position by first section corresponding to the amount of capacity of defined this recovery section of this archives economy of this recovery section when comprising this size of data of this recovery section, this reference position of utilizing this amount of capacity of this recovery section to deduct this recovery section is used as this size of data of this recovery section.
10. method according to claim 1, it includes in addition:
Utilize this recovery back CD content table to replace this original disc contents table.
11. method according to claim 1, wherein the pairing indicated value existence that should be scheduled to archives economy of this recovery section is with the closed condition that decides this recovery section.
12. method according to claim 1 wherein should be to use universal disk format by predetermined archives economy.
13. method according to claim 1 wherein should be to use the ISO9660 form by predetermined archives economy.
14. one kind is used for the CD with original disc contents table and predetermined archives economy is produced the method for restoring back CD content table, this method comprises carries out the following step repeatedly:
(a) choose a recovery section on this CD;
(b) but determine in this recovery section first pairing recovery section of posting field reference position reference position continuously;
(c) according to corresponding to this indicated value of restoring the archives economy of section, determine whether this recovery section is closed session; And
If this recovery section is a closed session, then carry out following step (d), (e), (f), (g):
(d) according to corresponding to this archives economy that restores section, determine the size of data of this recovery section;
(e) but the temporary transient Lead-In Area size of the temporary transient leading-out zone size of this size of data by will restoring section, this recovery section and next section adds to this recoverys section reference position calculates and be next to first continuous pairing this next section reference position of posting field reference position in this recoverys section this next section afterwards;
(f) information that includes this recovery section and this next section reference position by adding is set up this recovery back CD content table; And
(g) choose this next section for this recovery section and determine this next section reference position for this recovery section reference position of this recovery section to carry out next time computing repeatedly.
15. method according to claim 14, wherein step (a) includes: choose that first section is used as this recovery section on this CD; And step (b) includes: this recovery section reference position is decided in the initial position according to user's data of this CD.
16. method according to claim 14, but wherein this original disc contents table be damage, only part identification or can't be read by CD-ROM drive.
17. method according to claim 16, wherein step (a) includes: will be next to last cognizable closed session section afterwards according to this original disc contents table and be chosen for this recovery section; And step (b) includes: decide this recovery section reference position according to this original disc contents table.
18. method according to claim 14, wherein step (d) includes: use corresponding to derive this size of data of this recovery section of the amount of capacity of defined this recovery section of this archives economy of this recovery section.
19. method according to claim 14, wherein step (d) includes: when representing that corresponding to the amount of capacity of defined this recovery section of this archives economy of this recovery section reference position by first section when comprising this size of data of this recovery section, uses the amount of capacity of this recovery section to deduct this size of data that this recovery section reference position is used as this recovery section.
20. method according to claim 14, wherein step (c) includes: use the pairing indicated value that should be scheduled to archives economy of this recovery section to have the closed condition that decides this recovery section.
21. method according to claim 14, it includes in addition:
If this recovery section is open section, utilize this recovery back CD content table to replace this original disc contents table.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74378806P | 2006-03-27 | 2006-03-27 | |
| US60/743788 | 2006-03-27 |
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| Publication Number | Publication Date |
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| CN101051502A CN101051502A (en) | 2007-10-10 |
| CN101051502B true CN101051502B (en) | 2010-05-26 |
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| CN2007100896777A Expired - Fee Related CN101051502B (en) | 2006-03-27 | 2007-03-26 | Method for the recovery of a damaged table of contents in an optical disc |
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| TW (1) | TWI343570B (en) |
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| CN1457054A (en) * | 2003-06-23 | 2003-11-19 | 北京上方维志科技发展有限责任公司 | Audio or speech data compact disc recording format access method |
| JP2004252959A (en) * | 2003-01-31 | 2004-09-09 | Matsushita Electric Ind Co Ltd | Apparatus and method for recording/reproduction, computer program providing medium, computer program, and recording medium |
| CN1744051A (en) * | 2005-05-30 | 2006-03-08 | 杨来 | Data recovery technique based on packet structure |
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2007
- 2007-03-26 CN CN2007100896777A patent/CN101051502B/en not_active Expired - Fee Related
- 2007-03-27 TW TW96110573A patent/TWI343570B/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684770A (en) * | 1994-12-05 | 1997-11-04 | Samsung Electronics Co., Ltd. | User table of contents data recovering method of a recordable optical disc driving apparatus |
| US6263459B1 (en) * | 1999-04-29 | 2001-07-17 | Western Digital Corporation | On the fly write reallocation |
| JP2001184247A (en) * | 1999-10-12 | 2001-07-06 | Finaldata Inc | Method for restoring destroyed data and recording medium readable by computer preserving the same, and method and system for restoring remote adjustment data |
| JP2004252959A (en) * | 2003-01-31 | 2004-09-09 | Matsushita Electric Ind Co Ltd | Apparatus and method for recording/reproduction, computer program providing medium, computer program, and recording medium |
| CN1457054A (en) * | 2003-06-23 | 2003-11-19 | 北京上方维志科技发展有限责任公司 | Audio or speech data compact disc recording format access method |
| CN1744051A (en) * | 2005-05-30 | 2006-03-08 | 杨来 | Data recovery technique based on packet structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI343570B (en) | 2011-06-11 |
| TW200802334A (en) | 2008-01-01 |
| CN101051502A (en) | 2007-10-10 |
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