JP2002041165A - System for detecting illegally copied recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for detecting an illegally copied recording medium in a simple method. SOLUTION: When the classification of a recording medium recorded in application software is different form the classification of a recording medium driven by a driving device, it is judged that the driven recording medium is illegally copied, and any install from the recording medium to a personal computer is interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording system for detecting whether or not application software recorded on a recording medium such as a CD (compact disk) and a DVD (digital video disk) has been illegally copied. It relates to a medium detection method.

[0002]

2. Description of the Related Art In recent years, as personal computers have become widespread in many homes, a large number of application softwares are sold in various recording media such as CD-ROMs and DVD-ROMs in personal computer shops and the like.

FIG. 3 is a block diagram showing a configuration of a general personal computer used conventionally. As shown in FIG. 3, this personal computer 101 has a CPU 1 serving as a control center.
02, a RAM 103 serving as a main storage device, a ROM 104 storing a system program, an input device 105 including a keyboard and a mouse, a display device 106,
An interface 107 for transferring data to and from a peripheral device, a hard disk drive 108 connected to the interface 107, and a CD-ROM drive 109 for driving a CD-ROM are provided.

Then, the CD-ROM 110 on which the application software is recorded is inserted into the CD-ROM drive 109, and a predetermined operation is performed, whereby the application software recorded on the CD-ROM 110 is transferred to the hard disk drive 108. Can be installed.

[0005] This will be described in more detail.
M110 is inserted into the CD-ROM drive 109,
When a drive command is given, installer software included in application software is written into RAM 103 under the control of CPU 102. The installer software records files and data necessary for using the application software in the hard disk drive 108. Since the installation process is performed in this manner, the application software recorded on the CD-ROM 110 can be executed on the personal computer 101.

Here, as the recording medium of the CD system, in addition to the CD-ROM system which is a read-only recording medium widely used for supplying application software, a CD medium which is a rewritable recording medium a plurality of times is used. -RW
The CD-ROM drive 109 includes not only reading from the CD-ROM 110 but also CD-R and CD-RW. It is possible to read application software written on various types of CD-type recording media.

By the way, recently, the aforementioned CD
-R, a writable recording medium such as a CD-RW, and
The price of recording / reading devices corresponding to these recording media has been rapidly reduced, and has been widely used by users.
With the reduction in price and spread of such a recording / reading apparatus compatible with CD-R and CD-RW, it has become possible to copy the recorded contents of a CD-ROM at extremely low cost and easily.
Such an act is, of course, an illegal act, but in reality, many illegally copied recording media such as CD-Rs and CD-RWs are circulating for the above reasons.

[0008] With regard to application software supplied on a CD-ROM type recording medium, generally, illegal copying is performed by copying all or a part of the data recorded on the CD-ROM into a CD format or the like. DVD format writable recording media (CD-R, CD-RW,
DVD-ROM, DVD-R, DVD-RAM, DVD
-RW, etc.) or a hard disk or MO disk by copying the data onto a rewritable recording medium mounted on a computer system. I have.

When the recording medium on which such unauthorized copying has been performed is driven using the CD-ROM drive 109, DVD drive, or MO drive (not shown) of the personal computer 101 shown in FIG. Since the application software recorded on the recording medium on which the unauthorized copying has been performed can be installed on the hard disk drive 108, a third party can use the application software without paying a copyright fee for the application software. .

In order to solve such a problem, Japanese Patent Laid-Open Publication No. Hei 5-266576 and Japanese Patent Laid-Open Publication No. Hei 8-96
Various proposals have been made regarding methods for preventing unauthorized copying, such as Japanese Patent Publication No. 492, etc., but many of them are related to a recording system on a recording medium, a so-called recording format itself, or require a dedicated reading device, and the use of such methods is very large. It is necessary to use various devices and equipment, and it is actually difficult to implement them.

[0011]

As described above, the CD-
R, CD-RW, DVD-ROM, DVD-R, DVD
-While rewritable recording media, such as RAM, DVD-RW, hard disk, and MO disk, and recording / reading devices for such recording media have become widespread, illegal copies of commercially available application software have become widespread. As a result, computer software developers and distributors have suffered enormous damage.

Therefore, various methods have been proposed to prohibit installation of application software from a recording medium on which an illegal copy has been made. However, these methods are often difficult to use, and somehow, the illegal copy is performed by a simple method. There has been a demand for a method capable of preventing the occurrence of the illness.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem. It is an object of the present invention to provide a low-cost and simple detection method for detecting an illegally copied recording medium. Is to do.

[0014]

According to one aspect of the present invention, there is provided a recording medium in which application software is illegally copied in a computer system equipped with a recording medium drive. However, when driven by the drive device, is a detection method for detecting that the recording medium is an unauthorized copy,
If the type of the recording medium recorded in the application software is different from the type of the recording medium driven by the drive device, the application software recorded on the driven recording medium is illegally copied. The feature is that it is determined that the data is correct.

According to a second aspect of the present invention, when a recording medium on which application software has been illegally copied is driven by the drive device, the recording medium is recorded in a computer system equipped with a recording medium drive device. A detection method for detecting that a medium is an unauthorized copy, wherein the application software includes a recording medium detection unit that identifies a type of a recording medium on which the application software is recorded, and an original on which the application software is recorded. A recording medium type data, and a match with the type of the recording medium recognized by the recording medium detection unit, an unauthorized copy determination unit for detecting the mismatch, and an unauthorized copy determination unit, When it is detected that there is, the application recorded on the recording medium And wherein the stopping the execution of the software.

According to a third aspect of the present invention, in the case where the recording medium on which the application software is recorded is an MO disk or a hard disk, all of the recording medium is illegally copied. It is characterized in that the execution of the application software recorded on the MO disk or the hard disk is stopped upon determination.

According to a fourth aspect of the present invention, the application software recorded on the recording medium has a format in which the application software is installed in a computer system and executed. The invention according to claim 5 is characterized in that the application software recorded on the recording medium is in a format to be directly executed from the drive device.

According to the present invention configured as described above, when the recording medium on which the application software is recorded is driven by the drive device, the type of the recording medium is determined by the recording medium detection unit of the application software. Be recognized. Also, since the unauthorized copy determination unit has the data of the type of the original recording medium on which the application software is recorded, the data of this type and the type of the recording medium recognized by the recording medium detection unit are determined. If they match, it is determined that this recording medium is a legitimate recording medium, and if they do not match, it is determined that this recording medium has been duplicated by an illegal copy.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram schematically showing a configuration of a personal computer to which a method of detecting a recording medium having been illegally copied according to an embodiment of the present invention is applied.

As shown in FIG. 1, a personal computer 1 includes a CPU 2 serving as a control center, a RAM 3 serving as a main memory, a ROM 4 storing a system program, an input device 5 such as a keyboard and a mouse, and a display. Interface 7 for exchanging data between device 6 and peripheral devices
And a hard disk drive 8 connected to the interface 7 and a CD-ROM 10 or another CD
And a CD-ROM drive 9 for driving a recording medium of a format (CD-R, CD-RW, etc.).

The CD-ROM 10 includes an installer software 21 and a data file 24 therein. The CD-ROM 10 further includes a recording medium detection unit 22 and an illegal copy determination unit 23. I have.

The recording medium detecting section 22 identifies the type of the recording medium driven by the CD-ROM drive 9, and detects, for example, the type of a CD-ROM, CD-R, CD-RW or the like. FIG. 1 shows a CD-ROM as a recording medium.
Although the ROM 10 is described as an example, when the recording medium is a DVD format, an MO disk, or a hard disk and these are driven by each drive device (not shown), the recording medium detection unit 22 identifies the type. I do.

The unauthorized copy determination unit 23 has data of the type of the original (sold) recording medium in which the application software is recorded. In this case, the type of the recording medium is CD-ROM. Is recorded.

Next, the operation of the present embodiment will be described with reference to the flowchart shown in FIG. First, the operator uses the CD-ROM 10 as a regular recording medium (a recording medium that has not been illegally copied) to read the CD-R.
When installing the application software recorded on the OM 10 to the personal computer 1, the CD-ROM
The ROM 10 is set in the CD-ROM drive 9 and the C
The D-ROM drive 9 is driven.

Thus, the installer software 21 recorded on the CD-ROM 10 is written into the RAM 3. Next, the installer software 21
A process of writing the recording medium detection unit 22 and the unauthorized copy determination unit 23 of the ROM 10 into the RAM 3;

Under the control of the CPU 2, the type data of the original recording medium recorded in advance in the unauthorized copy judging section 23 and the CD detected by the recording medium detecting section 22.
A process of comparing the type of the recording medium driven by the ROM drive 9 is performed (step ST1).

In this case, since the type of the recording medium set in the CD-ROM drive 9 is the CD-ROM 10 on which the original application software is recorded, the result of the comparison is "match" (step ST).
("Match" in 2), it is determined that the recording medium set in the CD-ROM drive 9 and driven is a regular one (not illegally copied) (step ST3), and the installation process is continued. (Step ST4). Thus, the installation process from the authorized recording medium is performed.

On the other hand, a recording medium (CD-R, CD-RW, etc.) other than the CD-ROM illegally copied and duplicated from the CD-ROM in which the original application software is recorded is replaced with a CD-ROM. When set and driven in the ROM drive 9, the installer software 21 recorded on this recording medium (hereinafter referred to as a CD-R) is written into the RAM 3. Next, the operation of the installer software 21 causes the unauthorized copy determination unit 23 and the recording medium detection unit 22 to operate.
Is written to the RAM 3.

As described above, the type data of the original recording medium on which the application software is recorded is written in the unauthorized copy determination unit 23. In this case, the type of the recording medium is CD-ROM. The data to the effect is written. In addition, the recording medium detection unit 22 determines the type of the recording medium set in the CD-ROM drive 9, and in this case, it is recognized that the recording medium is “CD-R”.

Then, the type of the recording medium recorded in the unauthorized copy judging section 23 is compared with the type of the recording medium recognized by the recording medium detecting section 22 (step ST1). In this case, since the two do not match (“mismatch” in step ST2), it is determined that the recording medium (CD-R) set in the CD-ROM drive 9 has been duplicated by unauthorized copying. Is displayed on the display device 6 (step ST5), and then the process of installing from the CD-R is interrupted (step ST6).

Although not shown in FIG. 1,
In the case where an MO drive, a DVD drive, a hard disk drive, or the like is provided as a drive device for driving a recording medium, even when application software is installed using these drive devices, an illegal copy determination unit If the type of the recording medium recorded in the storage medium 23 does not match the type of the recording medium detected by the recording medium detection unit 22, the installation process is interrupted.

As described above, according to the method of detecting an unauthorizedly copied recording medium according to the present embodiment, the CD-ROM
For example, the type of the recording medium on which the original application software is recorded and the type of the recording medium actually set in the CD-ROM drive 9 are compared. It is determined that the recording medium set in 9 is a legitimate recording medium, and installation processing from this recording medium is permitted. If they do not match, it is determined that this recording medium has been illegally copied. Judge and interrupt the installation process.

As a result, installation from a recording medium copied by unauthorized copying can be prevented.
Further, even if the application software recorded on the CD-ROM 10 is illegally copied onto a recording medium other than the CD format, such as a DVD format, MO disk, or hard disk, the illegally copied recording medium may be used. Installation can be prevented.

When the type of the recording medium on which the original application software is recorded matches the type of the recording medium illegally copied (for example, a CD-ROM).
In the case where the application software recorded in the ROM is copied to another CD-ROM), it cannot be determined that this is illegal.
-Most of the application software recorded in the ROM is copied to a writable recording medium such as a CD-R or a CD-RW, and is used. It is possible to prevent illegal use of application software.

In the above embodiment, the case where the CD-ROM is used as the recording medium on which the original application software is recorded has been described, but the present invention is not limited to this. That is, the recording medium on which the original application software is recorded is a CD-R, which is stored on a CD-ROM or a CD-ROM.
-When used by copying to the RW, this can be detected as an illegal copy.

Also, in the case where a DVD is used as a recording medium on which application software is recorded, an illegal copy can be similarly detected. That is, when the recording medium on which the original application software is recorded is a DVD-ROM, the application software is stored on a DVD-R or DVD-R.
-When copied to another type of recording medium such as a RAM or DVD-RW and used, the same processing as in the above-described embodiment is performed to judge that the copy is an illegal copy, and the application software is installed. Can be banned.

Furthermore, commercially available application software is mostly sold on a recording medium in the form of a CD or DVD, such as a CD-ROM or DVD-ROM, and is sold in a form recorded on an MO disk or a hard disk. Since it is extremely rare, when application software is installed from an MO disk or a hard disk, it is possible to adopt a configuration in which this processing is entirely prohibited. With such a configuration, it is possible to more reliably prevent an illegal installation process from a recording medium that has been illegally copied.

In the above-described embodiment, the CD-RO
The application software of the type that installs and uses the application software recorded on a recording medium such as M in the personal computer 1 has been described.
The present invention is not limited to this, and it is needless to say that the present invention can be applied to a recording medium of a type in which application software recorded on a recording medium is directly read from a drive device to execute a program.

[0039]

As described above, according to the method of detecting an illegally copied recording medium according to the present invention, a recording medium detecting section and an illegal copy judging section are added to an installer application stored in the recording medium. By processing
Judge whether the recording medium on which the application software is recorded is genuine or duplicated by unauthorized copying, and allow the execution of the application software only if it is a legitimate recording medium. Make up. As a result, it is possible to prevent the illegal use of the application software recorded on the recording medium copied by the illegal copy.

Further, according to the present invention, without deviating from the standard specification of a recording and reading device for driving various recording media,
Since an illegal copy can be detected, it is possible to easily implement the apparatus without requiring a large-scale device or format change unlike the conventional method.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a personal computer to which an unauthorized copy detection method according to an embodiment of the present invention is applied.

FIG. 2 is a flowchart showing an operation of the embodiment.

FIG. 3 is a block diagram showing a configuration of a general personal computer conventionally used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Personal computer 2 CPU 3 RAM 4 ROM 5 Input device 6 Display device 7 Interface 8 Hard disk drive 9 CD-ROM drive 10 CD-ROM 21 Installer software 22 Recording medium detection part 23 Illegal copy judgment part 24 Data file

Claims (5)

[Claims] 1. A computer system equipped with a drive device for a recording medium, wherein the recording medium onto which application software has been illegally copied is illegally copied when the recording medium is driven by the drive device. If the type of the recording medium recorded in the application software is different from the type of the recording medium driven by the drive device, the type of recording is performed on the driven recording medium. A method for detecting an illegally copied recording medium, wherein it is determined that the copied application software has been illegally copied. 2. In a computer system equipped with a drive device for a recording medium, when a recording medium onto which application software has been illegally copied is driven by the drive device, the recording medium is an illegal copy. The application software is a recording medium detection unit that identifies the type of recording medium on which the application software is recorded, and the type data of the original recording medium on which the application software is recorded An unauthorized copy determining unit that detects whether the type of the recording medium is recognized or mismatched by the recording medium detecting unit, and that the unauthorized copy determining unit detects a mismatch. Stops execution of application software recorded on the recording medium. A method for detecting an illegally copied recording medium, wherein the recording medium is stopped. 3. When the recording medium on which the application software is recorded is either an MO disk or a hard disk, it is determined that all the recording media have been copied illegally, 3. The method according to claim 1, wherein execution of application software recorded on the hard disk is stopped. 4. The computer-readable storage medium according to claim 1, wherein the application software recorded on the recording medium has a format in which the application software is installed in a computer system and executed. The detection method of the recording media that has been illegally copied as described in the above. 5. The illegally copied application according to claim 1, wherein the application software recorded on the recording medium is in a format to be directly executed from the drive device. Recording medium detection method.