KR100496728B1 - A Copy-Protected Optical Recording Medium, a Method for Driving thereof and a Method for Manufacturing thereof - Google Patents

Abstract

Disclosed are a copy-protected optical recording medium, a driving method thereof, and a manufacturing method thereof. The optical recording medium includes at least one area in which address values are set equal to other areas.

Description

A copy-protected optical recording medium, a method for driving, and a method for manufacturing thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a copy-protected optical recording medium and a method of manufacturing the same for recording and reproducing content such as audio, video or computer readable data as digital information. The present invention relates to a copy protected optical recording medium which prevents copying and a method of manufacturing the same.

The present invention relates to an optical record medium present or future, for example an audio compact disc (CD), a combination of compact discs, a compact disc comprising another optical record medium area or a compact disc included in another optical record medium. A region, an input recordable medium, relates to a CD-R (CD-Recordable) or a CD-RW (CD-Rewritable).

In addition, the present invention is a recording medium in which digital information, such as high-quality digital video signals, is optically recorded, for reproduction DVD (digital versatile disc or digital video disc), input or input recordable medium using the DVD format. As a matter of course, the present invention can be applied to a DVD-Recordable (DVD-R), a DVD-Rewritable (DVD-RW), or a DVD-Random Access Memory (DVD-RAM).

On the other hand, in order to generally perform an operation such as controlling the optical recording medium and extracting the information recorded thereon, a reproducing apparatus needs address information indicating the position of the information recorded on the recording medium. The recording format of the information or the information structure of the recording medium for recording such address information and content information on the recording medium is well known in the art.

1 is a diagram conceptually showing an example of an information structure recorded on a DVD in a general DVD. As shown, the information recorded on the DVD constitutes one '(information) sector' on the basis of a predetermined amount of information. FIG. 1 illustrates a case where all 17 information sectors are formed. Each of the information sectors includes 172 bytes of content information and 10 bytes of horizontal error correction parity data. The seventeenth sector also includes parity data for longitudinal error correction. The above information structure merely shows an example of the information structure of a conventional DVD, and thus does not give any limiting meaning to the interpretation and application of the technical idea of the present invention.

In a recording medium in which information is recorded according to the above structure, the address data is information indicating at which position on the recording medium specific information is recorded, and a part of the address data is information indicating a position of the sector. It may be interpreted. The reproducing apparatus generates the necessary control signal using this address data and performs the reproducing operation. For example, when the reproducing apparatus wants to perform an operation such as moving a position on a recording medium or playing from a specific point, the reproducing apparatus refers to the address data and records the information recorded on the recording medium. It is possible to control the operation of searching (search).

However, recently, information recorded on the optical recording medium can be easily read using a conventional personal computer or the like. As a result, piracy or unauthorized copying became very easy and varied. Thus, the protection of copyrights on the contents recorded on the recording medium has become a serious problem.

Various solutions have been proposed to counter this problem. As one of them, generally, when reading a CD-ROM, information of a lead-in area in which information stored in the recording medium and predetermined control information thereof are recorded, that is, a table of contents (TOC). There is an attempt to solve the above problem by using the reading. That is, according to the "thio CD-free CD playback control method" (registered patent publication No. 200879), it is possible to remove TioC on the CD-ROM or audio CD to prevent duplication of information recorded on the recording medium. In order to reproduce both copy-protected and regular recording media,

1) The process of confirming that Tiosan is read:

2) the process of reading information from the track by moving to a predetermined track if TioC is not read in the checking process:

3) confirming whether the information read in the reading process has been read from a recording medium without Tiocy; and

4) The TioC-free CD which prevents unauthorized duplication, including reading according to the new format if the recording medium is Tio-free and reading according to the general format if the information in the lead-in area during the verification process. The playback control method of has been presented.

However, according to the above-described TIO-free CD playback control method, since the TioC part of the recording medium must be artificially removed and the reader of the recording medium must be programmed separately to perform the above-described operation. There is a problem that content recorded on a protected recording medium cannot be reproduced. This poses a problem for the user to purchase a new dedicated reader along with the recording medium.

1 conceptually illustrates an example of an information structure recorded on a DVD in a general DVD;

Fig. 2A is a diagram showing an information data string virtually arranged from information recorded on the innermost circumference side of a general optical recording medium to information recorded on the outermost circumference side, and an assignment state of address values of the information data columns.

Fig. 2B shows an information data string virtually arranged from information recorded on the innermost circumference side of the copy-protected optical recording medium according to the present invention to information recorded on the outermost circumference side, and an assignment of address values of the information data columns. Figure showing the state.

Fig. 3A is a view for explaining a method of driving a copy protected optical recording medium according to the present invention.

FIG. 3B schematically illustrates a column of information data extracted from the recording medium as the playback apparatus reads the information recorded on the recording medium according to the present invention in the order shown in FIG. 3A; FIG.

FIG. 3C illustrates a state in which information is recorded on a recording medium which is a copy when information data extracted from the recording medium is copied as the information recorded on the recording medium according to the present invention is read in the order shown in FIG. 3A. One drawing.

FIG. 4 is a diagram illustrating a state of virtually arranging information corresponding to one session of information recorded on an audio CD according to a redbook standard. FIG.

FIG. 5 is a diagram showing the configuration of individual frames constituting an information block recorded in a lead-in area of the information in FIG. 1; FIG.

FIG. 6 is a diagram illustrating a configuration of a Q subchannel among eight subchannels configured by control information of the frame information of FIG. 5; FIG.

FIG. 7 is a view showing a state in which virtually arranged information recorded on an optical recording medium which is copy protected according to another embodiment of the present invention. FIG.

Figure 8 is a flow chart schematically showing one embodiment of a method of manufacturing a copy-protected optical record carrier according to another embodiment of the present invention.

FIG. 9 is a view showing a state in which virtually arranged information recorded on an optical recording medium which is copy protected according to another embodiment of the present invention. FIG.

[Mode for Carrying Out the Invention]

In order to achieve the above object, the present invention provides a copy-protected optical recording medium, wherein in an copy-protected optical recording medium readable by a conventional reproducing apparatus, an address value assigned to the information recorded on the recording medium is stored. At least one overlapping section overlapping; And drive information for controlling the drive of the playback apparatus to read the information recorded in the overlapping section.

According to another aspect of the present invention, in the method of manufacturing a copy-protected optical recording medium, the method of manufacturing a copy-protected optical recording medium readable by a conventional reproducing apparatus, is assigned to the information recorded on the recording medium. Forming at least one overlapping section in which the address values overlap; And recording drive information for controlling the drive of the playback apparatus to read the information recorded in the overlapping section at a predetermined position of the recording medium.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.

First, referring to FIGS. 2A and 2B, FIG. 2A is an information data string virtually arranged from information recorded on the innermost circumferential side of a general optical recording medium to information recorded on the outermost circumferential side, and the information data columns Fig. 2B is a diagram showing an assignment state of address values, and Fig. 2B shows information data virtually arranged in a line from information recorded on the innermost circumference side of the copy-protected optical recording medium to information recorded on the outermost circumference side. A diagram showing assignment of columns and address values of the information data columns.

As shown in Fig. 2A, address values of information recorded on a general optical recording medium are assigned to increase sequentially from the inner circumference side to the outer circumference side. This state is shown as a monotonically increasing graph at the bottom of the information data column. Of course, there may be a case where the value of the address monotonously decreases from the inner circumference side to the outer circumference side.

In addition, in another known optical recording medium, the data may be mixed on the recording medium by scrambling the address data. By doing so, it is possible to increase the reproduction rate through error correction even when physical damage occurs to a predetermined portion of the recording medium. However, even in this case, assuming that the extracted information is arranged in a line as shown in FIG. 2A, it can be understood that the address value is monotonically increasing (or monotonically decreasing).

However, the copy-protected optical recording medium according to the present invention, as shown in Fig. 2B, includes at least one section (overlapping section) in which address values assigned to the information recorded on the recording medium overlap. The address value may be a physical address or a logical address. If the physical addresses overlap, the overlapping section can be implemented by forming a region where the address values overlap in a predetermined region on the recording medium at the time of manufacture of the recording medium, and if the logical addresses overlap, The overlapping section may be implemented by recording different data in a region to which different physical addresses are allocated, and allocating logical addresses of a predetermined region to overlap each other. In the illustrated example, it is shown that the overlapping section and the address value of the predetermined section, that is, the section B in front of the overlapping section.

Further, the copy-protected optical recording medium according to the present invention further includes driving information for controlling the driving of the playback apparatus in order to read the information recorded in the overlapping section in a predetermined area. The drive information is information for driving the reproducing apparatus to access each of them since the corresponding data of the information recorded in the section B and the overlapping section have the same address value.

That is, referring to FIG. 3A, there is shown a diagram for explaining a method of driving an optical recording medium protected from copying according to the present invention. In order to reproduce the copy-protected optical recording medium according to the present invention, a known optical recording medium reproducing apparatus (not shown) may be used, in which the conventional reproducing apparatus has the smallest value of the address of the recording medium. It is assumed that the value is read out from the position having the direction in which the value is gradually increased.

According to this assumption, the playback apparatus first reads the information recorded in the section A whose address value is relatively small (1), and then proceeds to the section B in which the address value is increased (2).

When the reading of the information of the section B is completed, the process proceeds to the front end of the section C to read the section of which the address value is further increased, that is, the section C (③).

At this time, the drive information instructs the playback apparatus to reverse the direction of travel so as to proceed with the reading operation of the information (hereinafter referred to as "progress direction reversal command"). Accordingly, the playback apparatus starts to perform the read operation toward the position where the address value decreases from the section C, i.e., from the rear end to the front end thereof (4).

Even after the reading of the overlapping section is completed, the playback apparatus continues to advance in the direction of decreasing address value. That is, the playback apparatus proceeds toward the rear end of the section A (⑤).

At this time, the driving information again gives a direction reversal command which causes the reproducing apparatus to reverse its progress direction to proceed with the reading operation of the information. Accordingly, the reproduction apparatus proceeds again in the direction of increasing the address value, that is, reading the information recorded in the section B (6).

Then, when the reading of the section B is completed again, the process proceeds to the front end of the section C again (⑦), and then the reading of the section C is proceeded (⑧).

That is, the information of the overlapping section is read by recording the drive information which gives the reproducing apparatus the above direction reversal command on the recording medium.

According to the above embodiment, the information recorded in the region having the same address value as the overlapping section, that is, the information recorded in the section B, is repeatedly extracted before and after the extraction of the information recorded in the overlapping section. When such a conventional reproducing apparatus reproduces the copy-protected optical recording medium according to the present invention, the information data string extracted from the recording medium according to the present invention is shown in Fig. 3B.

On the other hand, according to another embodiment of the present invention, in order to prevent the information of the section B from being repeatedly extracted, when the playback apparatus tries to read the rear end of the section A again (that is, after the process ⑤ is completed). In addition, the driving information may include an address jump command for directly proceeding to the front end of the section C together with the forward direction reversal command. Alternatively, a duplicate information ignoring command may be included to ignore the information of the section B repeatedly extracted.

The method of driving the recording medium before and after the overlapping section as described above may be various methods according to the specific embodiments of the present invention, in addition to the above examples, all of which are dependent on the design options according to the specific embodiments of the present invention. The detailed description thereof will be omitted since it is only a part.

On the other hand, the drive information is read by the reproducing apparatus at the time of reproducing the recording medium and is activated to drive the reproducing apparatus. A method of activating the drive information, wherein the drive information is read from the recording medium and loaded into a storage device of the playback device to act on a central processing unit (CPU) that controls the overall operation of the playback device. There may be a variety of methods. Specific means in this regard are already well known to those skilled in the art, so the details thereof are omitted.

Referring again to FIG. 3B, FIG. 3B schematically illustrates a sequence of information data extracted from the recording medium as the playback apparatus reads the information recorded on the recording medium according to the present invention in the order shown in FIG. 3A. Figure is shown. As shown, the information of the section B, followed by the information of the overlapping section is extracted following the information of the section A, and then the information of the section C is extracted after the information of the section B is extracted once again. Therefore, when the recording medium is reproduced according to the present invention, even when a normal reproducing apparatus is used, all information recorded on the recording medium according to the present invention can be read and reproduced normally.

However, if someone wants to copy the information recorded on the recording medium according to the present invention by a known method or a method newly developed after the present invention, but among the information extracted in the above order In order to record the information from the section B and the information from the overlapping section onto a recording medium which is a copy, the same address data allocated to the sections must be used. Therefore, only one of the information of the section B and the information of the overlapping section is recorded in the section having the corresponding address value of the recording medium which is a copy.

Therefore, in the case of reproducing the recording medium which is the thus-recorded copy, any one of the information of the section B of the original recording medium of the present invention and the information of the overlapping section cannot be extracted from the copying medium. . Therefore, there is information which is not copied to the recording medium which is a copy of the information of the original recording medium. Here, referring to FIG. 3, FIG. 3C is a copy medium when copying the information data extracted from the recording medium by reading the information recorded on the recording medium according to the present invention in the order shown in FIG. 3A. Is a diagram showing a state in which information is recorded. In the example shown, only the section B of the original recording medium is duplicated.

Further, when the driving information is correctly copied to the recording medium which is the copy in the above state, when the recording medium is reproduced, the forward and backward direction of the area of the recording medium which is the copy corresponding to the section where the addresses overlap. An inversion command is issued, whereby information of the corresponding area is repeatedly extracted. In the example shown in FIG. 3C, the information recorded in the section B of the original recording medium will be extracted repeatedly.

Therefore, in the case of a copy medium which is a copy, the data extracted at the position to which a specific address is assigned becomes the same regardless of the reproduction progress direction. This is a result different from the case of the original recording medium from which different data can be extracted at the position where the same address is assigned according to the reproduction progress direction. Therefore, the advantage can be used to determine the original recording medium and the recording medium as the copy. Will be.

Further, according to another embodiment of the present invention, when reading the information of the recording medium which is the original, original discrimination information capable of determining whether the recording medium is original may be recorded in the section B and the overlapping section. . That is, since the original discriminant information recorded in the overlapping section is not copied to the copy medium, the original discriminant information is not read when the copy medium is reproduced. The recording medium can be identified.

Since the recording medium which is the original and the copy can be discriminated as described above, a copy reproduction prohibition command for preventing the reproduction of the recording medium which is determined to be the copy may be included in the driving information.

Further, by recording part of the driving information, for example, information such as second advancing direction reversal information, in the overlapping section, when reproducing a recording medium which is a copy which is not recorded, the reproducing apparatus reads out the overlapping section information. As a result, the copying medium returns to the initial position of the recording medium, which causes malfunction.

According to still another embodiment of the present invention, by reproducing a part or all of an application program necessary for reproducing the information recorded on the optical recording medium in the overlapping section, reproduction of the recording medium which is a copy may be impossible.

Next, with reference to Figs. 4 to 9, another embodiment of the present invention will be described in detail by taking a compact disc which is a kind of optical recording medium as an example. According to the present embodiment, the optical recording medium includes a main content session 100 in which original information to be reproduced (hereinafter referred to as "main content") is recorded, and sessions added to prevent copying. It is provided with two sessions of the supplemental content session 102 including the overlap section as described above. It will be described in detail below.

In general, with respect to a format for storing audio content such as music on a compact disc, a standard protocol called a "red book standard" has been proposed. The audio CD under the redbook standard has a plurality of tracks, which are indexed and organized. Referring to FIG. 4, FIG. 4 is a diagram illustrating a state of virtually arranging information corresponding to one session of information recorded on an audio CD according to the redbook standard. As shown, the audio information recorded on the audio CD may include a track area (track 1) including a lead-in area, a pause area and a data area, each of which is accessed first by a reading apparatus. To track N) and a lead-out area indicating the end of the session.

In addition, each area is composed of a plurality of information blocks (also called 'sectors'), and one block includes 98 frames. Of these, the individual frames constituting the information block recorded in the lead-in area are configured as shown in FIG. That is, one frame recorded in the lead-in area includes three bytes of sync control information (Sync), one byte of control information (Control), twelve bytes of first content data (Data1), and four bytes of P parity information ( P parity), second content data information Data2 of 12 bytes, and Q parity information Q Parity of 4 bytes.

That is, each of the 98 frames constituting each of the plurality of information blocks recorded in the lead-in area includes one byte of control information. The one byte of control information includes eight bits each having one bit of information. It consists of subcodes. The eight subcodes are called P, Q, R, S, T, U, V, and W fields, respectively. The subcodes form eight subchannels called P, Q, R, S, T, U, V, and W subchannels, respectively, over 98 frames included in one information block. Each subchannel consists of 98 bits in total, including 2 bits of synchronization bits and 96 bits of data bits.

FIG. 6 is a diagram illustrating a configuration of a Q subchannel among eight subchannels configured by the control information. The other subchannels (P, R, S, T, U, V and W) are similar to the Q subchannels but carry different information. As shown, the first two bits of the Q subchannel represent sync patterns S0 and S1. The sync patterns S0 and S1 are used to synchronize the reading apparatus to rotate the recording medium at a constant linear velocity.

After the sync patterns S0 and S1, a 4-bit Cont field is recorded. The control field indicates the number of acoustic channels, the presence or absence of an emphasis, etc., of the contents contained in the recording medium. It may also indicate whether the type of content contained in the track is audio content or data content that can be played back with the support of a specific application program.

The next four bits are the Address (Adr) field and specify the mode for the format of the Q subchannel. For example, the format of the Q subchannel is known as mode 1, mode 2, mode 3, etc. Herein, the case of "0001" of the address field, that is, only the case where the format mode is mode 1 will be described as an example (Q). If the subchannel has a format of mode 1, it is configured in a format as shown in FIG. 6).

The track number (TNO) field is included after the address field Ad. The 8 bits included in the track number (TNO) field have one of values from 0 to 99 indicated by two-digit Binary Coded Decimal (BCD). In general, this number indicates the track number, but a track having the track number (TNO) field having a value of "00" is a lead-in track, and a track having a value of "AA" is a lead-out track. .

Next, as a point field, it is generally used to divide and display one piece of content indicated by the track number TNO in more general cases. In this general case, 8 bits included in the point field are 0 to 99. It has a value between and indicates the index number in the track. Also, in this case, three fields representing the absolute time code among the fields of the Q subchannel shown in FIG. 3, that is, the absolute minutes (AMin), absolute seconds (ASec), and absolute frames (AFrm) fields, are absolute in the track. It has a time value. Here, the absolute time value of the track means the time from when the first track is played to when the track is played while the entire recording medium is being played back. In particular, in the case of a compact disc, the absolute time value is Also called "address" or "address". This is because the absolute time value can be used as information on which address (address) on the recording medium is specified information.

However, the values of the Q subchannel and the absolute time code may be used in different meanings. That is, when the point field included in the Q subchannel of the lead-in area has a value of "A0", the absolute time code field (absolute portion (AMin), absolute seconds (ASec) and absolute frame (AFrm)). The recorded value indicates the number of the first track of the session. However, if the point field has a value of "A1", the value recorded in the absolute time code field (absolute AMin, absolute seconds ASec and absolute frames AFrm) is the last track of the session. When the point field has a value of "A2", the value recorded in the absolute time code field (absolute amount (AMin), absolute second (ASec) and absolute frame (AFrm)) is the corresponding session. Indicates the address (address) of the lead-out area of. In particular, when the point field has a value of "B0", the value recorded in the absolute time code field (absolute amount AMin, absolute second ASec and absolute frame AFrm) is determined by the address of the next session ( Address), and when the point field has a value of "C0", the value recorded in the absolute time code field (absolute amount (AMin), absolute second (ASec) and absolute frame (AFrm) is the corresponding recording medium. Indicates the address (address) of the first session of.

Next, three fields following the point field are recorded as three fields of minute (Min), second (Sec), and frame (Frm) each having 8 bits of information as a relative time code field of the track. This indicates the relative time code of the track within the session.

Next, a zero field is included before the above absolute time code fields. The zero field has only 8 bits of "0".

Finally, after the absolute time code fields, an 8-bit CRC field for error control is included.

Therefore, the optical recording medium reading device decodes the information of the Q subchannel in the lead-in area so that the content of any kind of content on the recording medium can be moved to any position on the recording medium by any structure. It is possible to determine whether it is recorded to have. That is, the data recorded in the control field determines whether the type of content of a specific track of the recording medium is audio content or information that can be reproduced by supporting a separate application program.

According to the present invention, by manipulating the information recorded in the control field and double-recording the content information, the reading apparatus is used to copy the recording medium without affecting the reproduction operation of the conventional reading apparatus. The necessary information may not be provided and, as a result, replication may not be possible.

That is, referring to FIG. 7, FIG. 7 is a diagram illustrating a state in which information recorded on the optical recording medium which is copy-protected according to the present embodiment is virtually arranged in a line. The example shown in FIG. 7 is an example in which the technical idea according to the present embodiment is applied to an audio CD. As shown, the copy protected audio CD according to the present invention includes a main contents session 100 in which audio contents are recorded as main contents, and a session added to prevent copying. And an auxiliary content session 102 for recording information (hereinafter, referred to as "auxiliary contents") of audio content included in the data content. As described above, the supplemental content session 102 includes an overlapping section as described above with reference to FIGS. Further, according to the present embodiment, the optical recording medium further includes the driving information as described above.

According to the present embodiment, the main content session 100 includes a lead-in area including TOS, one or more tracks (tracks 1 to N) and a lead-out area containing the main content. In particular, the main content session 100 includes information in its TioC indicating that the contents of the tracks (tracks 1 to track N) are not the audio contents but the data contents.

In addition, the auxiliary content session 102 includes a lead-in area including a TOS, an auxiliary content track and a lead-out area in which the auxiliary content is recorded. For example, the auxiliary content of the auxiliary content session 102 may be an MP3 file obtained by converting the audio content according to an MP3 method. The auxiliary content recorded in the auxiliary content session 102 can be played back only with the support of the corresponding application program as described above. The application program may be provided by a computer system equipped with the reading apparatus. However, according to this embodiment, the application program can be recorded together on the optical recording medium according to the present invention so that it can be utilized when necessary.

According to this embodiment, the auxiliary content session 102 is configured to drive at least one overlapping section in which address values assigned to recorded auxiliary contents overlap, and to drive the playback apparatus to read the information recorded in the overlapping section. It may further include driving information for controlling.

In this way, when the audio CD is reproduced according to the present invention, the main content from the main content session 100 is directly played or the auxiliary content is loaded from the auxiliary content session 102 according to the type of the reading device (not shown). It can be extracted and played with the support of the corresponding application program.

However, in the case where the audio CD according to the present invention is to be duplicated, a copy reading apparatus (for example, a CD-ROM drive; not shown) is first used by the control field included in the TOS of the main content session 100. (I.e., the information recorded in the main content session 100) is mistaken as data content rather than audio content, and thus, even if they are extracted, they cannot be copied normally.

In addition, since the auxiliary content of the auxiliary content session 102 has been recorded by the copy protection method described above with reference to FIGS. 1 to 3, the copy reading apparatus cannot copy it. Therefore, no part of the optical recording medium according to the present invention is successfully copied.

Next, an embodiment of the method of manufacturing the optical recording medium described above with reference to FIG. 7 will be described in detail with reference to FIG. 8. As shown, when the method of manufacturing a copy-protected optical recording medium according to the present invention is started in step 500, after completing a predetermined step by a known method, a main content session 100 in which content such as audio is recorded is started. Form (step 502).

In particular, this step includes the step of including the information indicating that the contents of the tracks (track 1 to track N) included in the main content session is the data content in a predetermined region of the main content session 100. (Step 5022). In the case of the embodiment shown in Fig. 7, in step 5022, the TOS of the main content session 100 includes information indicating that the information recorded in the main content session 100 is data content.

Next, the supplemental content session 102 is formed (step 504). In particular, this step includes recording the auxiliary content according to a copy protection method of data content (step 5042). In the case of the embodiment shown in FIG. 7, the auxiliary content is recorded in the auxiliary content session 102 in step 5042.

After the above step 504 is completed, the method for producing a copy-protected optical record carrier according to the present invention will perform the following known manufacturing process steps.

On the other hand, in recent years, optical recording media that are recordable by computer systems have also been commercialized. Of course, a copy protection process may be performed on the recordable optical recording media by a method including the steps 502 to 504. .

Next, according to another embodiment of the present invention, it goes without saying that the technical idea of the present invention can be applied to an optical recording medium including a plurality of main content sessions. Referring to FIG. 9, FIG. 9 is a diagram illustrating a state in which information recorded on an optical recording medium which is copy protected according to another embodiment of the present invention is virtually arranged in a line. 9 illustrates another embodiment of the present invention in which the technical spirit of the present invention is applied to an audio CD.

As shown, the copy-protected audio CD according to this embodiment includes a number of main content sessions 100.1, 100.2 and 100.n containing audio content, and further includes an auxiliary content session 102 added for copy protection. Include. The auxiliary content session 102 further includes the overlap section described above with reference to FIGS. 1 to 3, and the optical recording medium according to the present embodiment further includes the driving information.

The main content sessions 100.1, 100.2 and 100.n include a lead-in area including a not shown TioC and a plurality of tracks and lead-out areas containing audio content information. In addition, the auxiliary content session 102 includes a lead-in area including a TOS and first and second auxiliary tracks and a lead-out area.

The lead-in area of each of the main content sessions 100.1, 100.2 and 100.n includes a typical configuration of TioC, so that each track included in the main content sessions 100.1, 100.2 and 100.n (not shown). The control information for the reproduction of is recorded, including information indicating that all the information contained in the respective tracks of the main content sessions 100.1, 100.2 and 100.n are all data contents.

Also in the audio CD according to the present embodiment, the description of the auxiliary content session of the audio CD according to the embodiment described above with reference to FIG. 7 is equally applied to the auxiliary content session 102.

Therefore, when the audio CD according to the present embodiment is inserted into the reading apparatus, the audio contents of the plurality of main content sessions 100.1, 100.2 and 100.n or the auxiliary contents are played according to the type of the reading apparatus. The data content recorded in the session 102 is extracted and reproduced with the support of the corresponding application program.

However, in the case where it is desired to duplicate the audio CD according to the present embodiment, the duplication reading apparatus may use information recorded by control fields included in the TOS of the main content sessions 100.1, 100.2 and 100.n. They are mistaken for data contents, not audio contents, and thus they cannot be copied normally even if they are extracted. In addition, the information recorded in the auxiliary content session 102 also cannot duplicate it, and thus, no part of the optical recording medium according to the present embodiment can be successfully copied.

In the method of manufacturing the optical recording medium according to the present embodiment, the steps of forming the main content sessions 100.1, 100.2 and 100.n in the manufacturing method of the above-described embodiment with reference to FIG. 8 should be performed. Since it is the same as that of the above-mentioned embodiment, the detailed description is abbreviate | omitted.

According to another embodiment of the present invention, the information recorded on the copy-protected optical recording medium is a method of preventing copying of already known data contents or a "copy-protected optical disc manufacturing method filed by the applicant of the present invention and its Optical disc "(Patent Application No. 2001-20805). For example, at least one OHD region may be included between regions other than the overlapping section. Alternatively, the overlapping section may include at least one OHD region.

As mentioned above, although the technical idea of this invention was demonstrated in detail regarding the preferable embodiment, the above description does not limit or limit this invention by itself.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a copy-protected optical recording medium readable by a conventional general purpose reader and a method of manufacturing the same.

According to the present invention, it is possible to provide a copy-protected recording medium and a method of manufacturing the same, which can be reproduced without having to rely on a separate read device.

Claims (20)

In a copy-protected optical recording medium readable by a conventional playback device, At least one overlapping section in which address values allocated to pieces of information recorded on the recording medium overlap; And And copying drive information for controlling the driving of the playback device to read the information recorded in the overlapping section. The method of claim 1, And the drive information includes a forward direction reversal command for causing the playback device to reverse the direction of playback of the playback operation before and after the overlapping section so as to proceed with the reading operation of the information. The method of claim 1, When the playback information reaches a position where the playback device extracts the information recorded in the area having the same address value as the overlapping section two or more times, the playback device jumps over the address section as many as the overlapping section. A copy protected optical record carrier comprising an address jump command to cause an operation to proceed. The method of claim 1, The driving information includes a duplicate information disregarding command for disregarding repeatedly extracted information when the reproducing apparatus reaches a position where the information recorded in the area having the same address value as the overlapping section is extracted more than once. Copy protected optical recording medium. The method of claim 1, And a copy-protected optical recording medium having recorded therein original discrimination information for discriminating whether or not the recording medium is original. The method of claim 1, And the drive information includes a copy prohibition command for causing the playback apparatus to determine that the recording medium determined to be a copy does not reproduce it. The method of claim 1, And a copy-protected optical recording medium in which a part of the driving information is recorded in the overlapping section. The method of claim 1, A copy-protected optical recording medium having recorded thereon part or all of an application program necessary for reproducing the information of the optical recording medium. The method of claim 1, And at least one or more OHD areas between areas other than the overlapping section. The method of claim 1, And at least one or more OHD regions within said overlapping section. A method of manufacturing a copy-protected optical record carrier readable by a conventional playback device, Forming at least one overlapping section in which address values allocated to the information recorded on the recording medium overlap; And And recording driving information for controlling the driving of the playback apparatus in a predetermined position of the recording medium to read the information recorded in the overlapping section. The method of claim 11, And the drive information includes a forward direction reversal command for causing the playback device to reverse the direction of playback of the playback operation before and after the overlapping section so as to proceed with the reading operation of the information. The method of claim 11, When the playback information reaches a position where the playback device extracts the information recorded in the area having the same address value as the overlapping section two or more times, the playback device jumps over the address section as many as the overlapping section. A method of manufacturing a copy protected optical record carrier comprising an address jump command to cause an operation to proceed. The method of claim 11, The driving information includes a duplicate information disregarding command for disregarding repeatedly extracted information when the reproducing apparatus reaches a position where the information recorded in the area having the same address value as the overlapping section is extracted more than once. A method of manufacturing a copy protected optical recording medium. The method of claim 11, And a method of manufacturing a copy-protected optical recording medium in which the original discrimination information capable of determining whether the recording medium is original is recorded in the overlapping section. The method of claim 11, And the drive information includes a copy reproduction prohibition command for causing the playback apparatus to determine that the recording medium determined to be a copy does not reproduce it. The method of claim 11, And a method of manufacturing a copy-protected optical recording medium in which a part of the driving information is recorded in the overlapping section. The method of claim 11, And a method of manufacturing a copy-protected optical recording medium in which the overlapping section records some or all of the application programs necessary for reproducing the information of the optical recording medium. The method of claim 11, And at least one or more OHD areas between areas other than the overlapping section. The method of claim 11, And at least one or more OHD regions within said overlapping section.