CN1116651C - Method for preventing copying of CD for use in computer-like equipment - Google Patents
Method for preventing copying of CD for use in computer-like equipment Download PDFInfo
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- CN1116651C CN1116651C CN 97104058 CN97104058A CN1116651C CN 1116651 C CN1116651 C CN 1116651C CN 97104058 CN97104058 CN 97104058 CN 97104058 A CN97104058 A CN 97104058A CN 1116651 C CN1116651 C CN 1116651C
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Abstract
The present invention relates to a duplication-prevention method for optical discs of a computer and the files on the optical discs. The method comprises the following steps: at least one section of area which can not be normally accessed is inserted in the computer files on the optical discs to be recorded; corresponding adjustment relevant to accessing addresses is done to the modified files; finally, the computer files processed by the corresponding adjustment are recorded on the optical discs. When people attempt to illegally duplicate the processed optical discs of the computer or the files on the optical discs, because all the files or all the data of the optical discs have to be accessed, accidental interruption can be generated when the area which can not be normally accessed is encountered, and the duplication can not be carried out.
Description
The present invention relates to the employed CD copy prevention method of a kind of computer equipment, more particularly, relate to the anti-totally of a kind of CDROM, DVDROM CD and duplicate and file anti-copying method.
CD is the miracle of modern development in science and technology, the welcome that it is big with memory capacity, low cost of manufacture and characteristics easy to use are subjected to the user.The appearance of CD makes software publishing very convenient.Because the data that CD loaded can arbitrarily copy, pirate phenomenon is also serious day by day but meanwhile.Only needed for 4 seconds owing to produce a CD, and its capacity is equivalent to nearly thousand times of floppy disk, CD can be compared by the degree of piracy and loss nonmagnetic disk.The pirate annual loss of causing multi-million dollar for whole world software industry of CD is one of greatest problem of facing of software industry now, and head it off is very urgent.
Publisher is in order to protect the valuable material of oneself, and it is pirate to have adopted several different methods to resist:
1. on compression mold, add the recognition mark of SID or IFPI: require the CD that the user does not buy does not have this sign.This is a kind of method of passiveness, and the bootlegger can imitate easily.
2. additional firmware is protected the software on the CD: when software uses, need computing machine to differentiate whether the user has correctly connected with the subsidiary special hardware of copyrighted software.Although additional hardware is difficult to imitated, the additional firmware cost is high, use bothers, be not easy to large-scale production.
3. utilize flexible plastic disc to encrypt:, in order to reach the purpose of protection software, have to issue as the carrier distributed software or in the mode that CD adds disk with flexible plastic disc because present most software encryption technique all develops on flexible plastic disc.Usually the part critical software is stayed on the floppy disk when mode that adds disk with CD is issued and protected.In these two kinds of cipher modes, the former can't issue the software package that increases day by day at present, and cost is very high, and the latter has not only increased cost, the user uses trouble, and the CD long shelf-life, easy to use, speed is fast etc., and significant advantage has all been obliterated.
4. need to answer password before using: do not have the people of password just can not use this dish, the people that password still arranged is validated user not necessarily.Bootlegger even directly password is imprinted on the dish face.
5. some CD has defined new data layout, can only read use by corresponding special hardware equipment, and its production equipment is also very special.Cost height so not only, and utterly useless for the standard device that has entered at present huge numbers of families.These modes have only major companies such as Sony, Sega just can use on their special-purpose assorted product.
This shows that opposing is pirate, protecting the intellectual property to have more efficient methods.This method should not influence at all, not need accessory hardware the use of validated user, and file can not copy, carrier can't duplicate, can improve constantly cipher round results by the update software technology.Method of the present invention can satisfy these requirements.
The CD copy prevention method that the object of the present invention is to provide a kind of computer equipment to use, this method can prevent that CD from illegally directly being duplicated not increasing the cost of original production and do not change under the prerequisite of using method of validated user.
Purpose of the present invention is to provide the anti-copy method of the employed optical file of a kind of computer equipment again, and this method can not increase the cost of original production and not change the file that prevents under the prerequisite of using method of validated user on the CD by illegal copies.
The present invention also aims to provide a kind of on CD the document method of logger computer file, this method can not increase the cost of original production and not change that the file that prevents to be recorded under the prerequisite of using method of validated user on the CD is illegally directly duplicated and CD is illegally directly duplicated.
In order to achieve the above object, the invention provides the employed CD copy prevention method of a kind of computer equipment, be provided with the zone that at least one can not normally be visited in the data-storing zone that this method can normally be visited on CD, the interference data that this zone that can not normally visit can be a bad block, some are mixed and disorderly or one have the zone of special format or are non-data storage areas.
The present invention also provides the copy prevention method of the employed optical file of a kind of computer equipment, insert at least one section special content in the computer documents of this method on being recorded in CD, the pairing CD physical location of this section special content is set to the zone that can not normally visit the most at last.
The present invention also provides the recording method of a kind of computer documents on CD, this method comprises the steps: to insert at least one section special data in the middle of the computer documents that will be recorded on the CD, above-mentioned amended file and relative program thereof are done corresponding adjustment about reference address, can skip the special data of insertion when making running software, normal use when unmodified, the file logging of the above-mentioned processing of process on CD, is being set to normally access region to the pairing CD range of physical addresses of the special data of above-mentioned new insertion final the application on CD or its mother matrix.
Adopt words of the present invention, can reach following effect:
During to the operation of executable file, the calculator memory operation is called in the code segmentation that needs in the executable file to use by address location system by executable file itself, the special data of this stylish insertion only is equivalent to one section invoked never code, does not influence the operation (shown in the dotted line of Fig. 2 and Fig. 3) to executable file;
Copy the whole of the necessary access file of computer-chronograph at execute file, but owing to inserted one section special area in the protected file, and the inaccessible zone on the corresponding CD of this special area, in the execute file copy procedure, can run into the visit failure and interrupt copy procedure, thereby play the anti-copy effect (shown in the solid line of Fig. 2 and Fig. 3, duplicating process duplicates and can't continue after arriving the P1 point of interruption);
When optical media replication, optical media replication equipment must be finished the visit (A1 to A4 of Fig. 4 locates) to overall data, owing to there is the zone (A2 to A3 of Fig. 4 locates) of inaccessible on the CD, running into inaccessible in carrying out the optical media replication process interrupts, reproduction process is always failed, thereby plays the anti-effect of duplicating;
Because method of the present invention can without any influence, be convenient to large-scale production to routine production realize (can certainly realize) on the mother matrix in this class print of CDR of short run distribution so very much;
Method of the present invention is applicable to the employed read-only carrier of the computer equipment of any confession, as CDROM, DVDROM and game optical disk or the like; And added write-protected read-write carrier, as MO, PD or the like; Also have publisher not allow the user to change the read-write carrier of file structure voluntarily.
Fig. 1 does not adopt the execution of this method computer-chronograph file F1 and the synoptic diagram of duplicating process.Wherein: solid line is represented the duplicating process of file F1; Dotted line is represented the executive process of file F1.
Fig. 2 is the execution of computer documents after employing this method and the synoptic diagram of duplicating process.As shown in the figure, inserted file F0 at computer documents F1, and the inaccessible zone on the final corresponding CD of file F0.Wherein: solid line is represented the duplicating process of file F1; Dotted line is represented the executive process of file F1.
Fig. 3 is to use the synoptic diagram when one normally access region is protected a plurality of file.Wherein: solid line is represented the duplicating process of file F1; Dotted line is represented the executive process of file F1.
Fig. 4 is the data of optical disk structural representation that has inserted behind the zone that can not normally visit.Wherein A2 is to the corresponding inaccessible of A3 section zone.
Below by accompanying drawing most preferred embodiment of the present invention is described.
The program of computing machine and data are that the form with file is stored on the CD.Computing machine has following form to the operation of these files:
During to the operation of executable file, the code segmentation that needs in the executable file to use is called in the calculator memory operation, promptly to the visit of executable file segmentation always by the address location system of executable file itself;
When the large data file is called, also be the part that only visit needs usually, not needing part is can not go to load;
When carrying out document copying, what computing machine must access file is whole, thereby finishes document copying.If in the execute file copy procedure, run into unexpected interruption, then copied files failure;
To optical media replication the time, optical media replication equipment must be finished the visit to overall data, just can finish replication task.Interrupt then replication task failure if in reproduction process, run into accident.
This method realizes as follows:
1. in the file F1 that needs protection, select an optional position,, insert one section special file (F0 of Fig. 2) at this as P0 among Fig. 1, new file of file that this is special and original formation, with new file storage on CD.
2. if the file of protection is an executable file, then revise its intrinsic call address, make its part that can cross F0 continue normal the use; If the file of protection is will be by the file that other file called, for example data file then can be revised the file that calls it, strides F0, use as usual during feasible the calling.Perhaps also can in internal memory, load a resident program, the home address of the protected file of visit is called be made an amendment, make visit add F0 length greater than the address of insertion point.In a word, its objective is and make the new file can be as normal use originally, shown in the dotted line of Fig. 2.
3. when making the sample dish, the physical location (A2 to A3 as Fig. 4 locates) of the corresponding CD of the content of F0 institute is noted, when making mother matrix, this fragment position is made into normally access region.Formation normally access region can have multiple mode, one of them simple mode be exactly in making the mother matrix process of CD the position in correspondence turn-off laser, also can be some interfering datas or the A2 on the mother matrix is carried out physical damage to the A3 section afterwards.
4. the normally access region on the CD can be more than one.
5. in the time of in a dish, need protecting if any a plurality of files; the mode that can adopt another file of Document folio (as shown in Figure 3; wherein F1, F2 ... Fn is the file that needs protection, and F0 is the new data of inserting), to save shared space, inaccessible zone.
Above-mentioned is to comprise the normally way and the purposes of access region in the middle of the optical file, and this method is effective method.But when too high-intensity protection do not need to be felt by the publisher of this technology of employing, also can adopt the mode of following similar principles to simplify the operation;
Increase one or more new special files in CD, this file adopts the method for making step 3, makes normally access region on the final corresponding CD of these special files.Like this, this laser disc can not duplicate totally.If do not need to prevent that file directly is copied, this is just passable.The file that direct copy is got off can not use, and then can revise the crucial executable file in the CD, makes it in one of following condition of run-time check or combination or the similar condition of multiaction more:
1. check whether go up operation at CD (or carrier of former publication specification);
2. check not directly whether the correlation parameter of access region is correct;
3. in former dish, add in advance or be recorded into the sign that some can not directly copy, check whether the correlation parameter of this sign is correct.Determine next step operation according to the result who checks.
Therefore, in CD, add the inaccessible zone and also can play suitable protective effect.
Claims (17)
1. the copy prevention method of the employed CD of computer equipment may further comprise the steps:
A. in the data storage areas that on CD, can normally visit the zone that at least one can not normally be visited is set;
Described method to set up is as follows:
A. insert at least one section special data in the middle of the file that will write down on the CD,
B. above-mentioned amended file and relative program thereof are done corresponding adjustment about reference address, can skip the special data of new insertion when making running software, normal use when unmodified,
D. through the file logging of above-mentioned processing on CD,
E. the pairing CD physical address of the special data of above-mentioned new insertion section is set to normally access region final the application on CD or its mother matrix.
2. the employed CD copy prevention method of computer equipment as claimed in claim 1, the wherein above-mentioned zone that can not normally visit are a bad block or no signal zone.
3. the employed CD copy prevention method of computer equipment as claimed in claim 1, the wherein above-mentioned zone that can not normally visit is some mixed and disorderly interfering datas.
4. the employed CD copy prevention method of computer equipment as claimed in claim 1, the wherein above-mentioned zone that can not normally visit are a zone with special format.
5. the employed CD copy prevention method of computer equipment as claimed in claim 1, the wherein above-mentioned zone that can not normally visit are a non-data-storing zone.
6. the method for claim 1, further comprising the steps of:
B. when moving, optical disc software need check that some not directly go the data of duplicating by file layout.
7. the method for claim 1, further comprising the steps of:
B. when disc making, added some signs that can not directly be copied,
C. when moving, optical disc software need judge the correlation parameter of this sign.
8. the copy prevention method of the contained file of the employed CD of computer equipment may further comprise the steps:
A. insert at least one section special content in the file that writes down on CD, the pairing CD physical location of this section content finally is set to normally access region.
B. when moving, optical disc software need check the above-mentioned normally correlation parameter of access region.
9. the employed CD copy prevention method of computer equipment as claimed in claim 8, the wherein above-mentioned zone that can not normally visit are a bad block or no signal zone.
10. the employed CD copy prevention method of computer equipment as claimed in claim 8, the wherein above-mentioned zone that can not normally visit is some mixed and disorderly interfering datas.
11. the employed CD copy prevention method of computer equipment as claimed in claim 8, the wherein above-mentioned zone that can not normally visit are a zone with special format.
12. the employed CD copy prevention method of computer equipment as claimed in claim 8, the wherein above-mentioned zone that can not normally visit are a non-data-storing zone.
13. the method toward the employed CD identifying recording layer of computer equipment comprises:
A. insert at least one section special data in the middle of the file that will write down on the CD,
B. above-mentioned amended file and relative program thereof are done corresponding adjustment about reference address, can skip the special data of new insertion when making running software, normal use when unmodified,
D. through the file logging of above-mentioned processing on CD,
E. the pairing CD physical address of the special data of above-mentioned new insertion section is set to normally access region final the application on CD or its mother matrix.
14. the employed data of optical disk recording method of computer equipment as claimed in claim 13, the wherein above-mentioned zone that can not normally visit are a bad block or no signal zone.
15. the employed data of optical disk recording method of computer equipment as claimed in claim 13, the wherein above-mentioned zone that can not normally visit is some mixed and disorderly interfering datas.
16. the employed data of optical disk recording method of computer equipment as claimed in claim 13, the wherein above-mentioned zone that can not normally visit are a zone with special format.
17. the employed data of optical disk recording method of computer equipment as claimed in claim 13, the wherein above-mentioned zone that can not normally visit are that non-data are according to the storage zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97104058 CN1116651C (en) | 1997-04-23 | 1997-04-23 | Method for preventing copying of CD for use in computer-like equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97104058 CN1116651C (en) | 1997-04-23 | 1997-04-23 | Method for preventing copying of CD for use in computer-like equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1164071A CN1164071A (en) | 1997-11-05 |
| CN1116651C true CN1116651C (en) | 2003-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97104058 Expired - Fee Related CN1116651C (en) | 1997-04-23 | 1997-04-23 | Method for preventing copying of CD for use in computer-like equipment |
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| Country | Link |
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| CN (1) | CN1116651C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407175C (en) * | 2004-11-29 | 2008-07-30 | 北京凯诚高清电子技术有限公司 | Anti-copy multi-media optical disc and its producing method |
-
1997
- 1997-04-23 CN CN 97104058 patent/CN1116651C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407175C (en) * | 2004-11-29 | 2008-07-30 | 北京凯诚高清电子技术有限公司 | Anti-copy multi-media optical disc and its producing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1164071A (en) | 1997-11-05 |
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