JP2006134427A - Optical disk recording/reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording/reproducing device capable of limiting those permitted to edit and reproduce data recorded in an optical disk. <P>SOLUTION: A DVD recorder 1 for editing and reproducing data recorded in a DVD 9 is provided with an operation switch 3 or a remote-control light receiving part 2 for receiving a password, and a password collation means 6b for reading management information recorded in the loaded DVD 9 and collating a password contained in the read management information with the password input from the operation switch 3 or the remote-control light receiving part 2 to determine coincidence when the password is contained in the read management information, and a CPU 6 for performing a control operation for the editing and the reproducing in cases other than that where the collation result shows noncoincidence. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention records data or reproduces recorded data on an optical disc capable of recording / reproducing data such as DVD-R (DVD-Recordable) or DVD-RW (DVD-ReWritable). The present invention relates to an optical disc recording / reproducing apparatus.

Currently, DVD (Digital Versatile Disc), which is one of large-capacity optical discs, can record data on DVD-R, and can rewrite recorded data on DVD-RW and DVD-RAM (Random Access Memory) is provided.

By the way, data recorded on a DVD-R or DVD-RW is reproduced as it is in a recorded state because the format is incompatible with a reproducing apparatus and a PC (personal computer) that only support the DVD-Video format. I can't.

Therefore, in order to reproduce data recorded on a DVD-R or DVD-RW (hereinafter referred to as DVD-R / -RW) with the above-mentioned reproducing apparatus and PC, the data recorded on the DVD-R / -RW is used. It is necessary to perform a conversion process for conversion to a predetermined format compliant with the DVD-Video format, and this conversion process is called finalization. That is, finalization is necessary to ensure compatibility with a reproduction-only DVD. The finalized DVD-R / -RW cannot be edited thereafter such as deletion of recorded data or addition of new data.

In addition, a recording apparatus that can ensure the confidentiality and security of recorded information has been proposed (see, for example, Patent Documents 1 and 2).

Also, common information that can be reproduced by a predetermined information reproducing apparatus is recorded, specific information that can be reproduced by a specific information reproducing apparatus in the predetermined information reproducing apparatus is recorded, and the relationship between the common information and the specific information is indicated. A recording method of an information recording medium for recording link information has also been proposed (see, for example, Patent Document 3).
JP 2003-132624 A JP 2004-30779 A JP 2003-178564 A

However, in the case of a DVD-R / -RW before finalization, an editing operation such as deletion of recorded data or addition of new data is performed on an optical disk recording in which data is recorded on the DVD-R / -RW. Since this can be performed using the optical disk recording apparatus or the same manufacturer as the optical disk recording apparatus, a person other than the original operator who is trying to record predetermined data on the DVD-R / -RW The DVD-
There has been a case where the editing operation is arbitrarily performed on R / -RW. In such a case, the predetermined data intended by the original worker may not be recorded on the DVD-R / -RW, or unnecessary data other than the predetermined data may be recorded on the DVD-R / -RW. There was a problem.

Moreover, even if it is DVD-R / -RW before finalization, DVD-R / -RW
If the optical disk recording / reproducing apparatus has a reproducing function, the DVD-
Since the data recorded in the R / -RW can be reproduced, the original worker can
Even if it is thought that the other party does not want the recorded data to be viewed at the present time (until finalization), the other party is not allowed to play the DVD-R / -RW against the original operator's intention. Using an optical disk recording / reproducing apparatus capable of data recording and reproduction, the DVD-R /-
The data recorded in the RW can be reproduced and viewed.

In the prior art described in Patent Document 1, the video / audio data recorded on the recording medium cannot be reproduced unless the password is input. Therefore, only a person who knows the password can record on the recording medium. The viewing restriction can be applied so that the reproduced video / audio data cannot be viewed. However, there is no description on restricting who can perform editing operations such as deleting recorded data and adding other data to the recording medium.

Further, in the prior art described in Patent Document 2, since the content recorded on the optical disc and set with the password cannot be reproduced unless the password is input, the content unit of the data recorded on the optical disc Security and confidentiality can be ensured. However, there is no description on limiting the person who can perform editing operations such as deleting recorded data and adding other data to the optical disc.

Moreover, in the prior art described in Patent Document 3, based on the information recorded on the same information recording medium, the function is differentiated and unique for each information recording / reproducing apparatus with different manufacturer or distributor. However, it is possible to limit the persons who can reproduce the information recorded on the information recording medium, or to delete information recorded on the information recording medium and other information. It cannot be applied to limit the number of people who can perform editing work such as appending.

The present invention has been made to solve the above-described problems, and restricts who can reproduce the data recorded on the optical disk or deletes the data recorded on the optical disk. It is another object of the present invention to provide an optical disk recording / reproducing apparatus capable of limiting the number of persons who can perform editing operations such as additional recording of other data.

In order to achieve the above-mentioned object, the invention of claim 1 is directed to a DVD formatted as DVD-Video, an edit for recording data or deleting recorded data, and recorded data. Is an optical disk recording / reproducing apparatus that performs reproduction of a DVD, a disk detection means for detecting that a DVD has been loaded, a password input means for inputting a password, and a method for formatting the loaded DVD into DVD-Video. Password recording means for selectively recording the password input by the password input means included in the management information of data recorded on the loaded DVD based on DVD-Video, and the disk detection DVD-Vid recorded on the loaded DVD when the means detects the loading of the DVD It reads the management information of data recorded based on o,
A password verification unit for verifying whether the password included in the read management information is the same as the password newly input by the password input unit when a password is included in the read management information; And an optical disc recording / reproducing apparatus comprising: control means for performing operation control for the editing and reproduction except when the collation results of the password collation means are not identical.

According to this configuration, the password recording unit converts the loaded DVD into a DVD-Vi.
When formatting to deo, it is possible to selectably record the password input by the password input means included in the management information of data recorded on the loaded DVD based on DVD-Video. it can.

Further, when a DVD is loaded to edit / reproduce data recorded on the DVD, the disk detection means detects the loading of the DVD, and upon receipt of the detection signal, the password verification means is loaded. When the management information of the data recorded based on the DVD-Video recorded in the DVD is read and the read management information includes a password, the password and the password included in the read management information It is verified whether the password newly input by the input means is the same. If the collation results are not the same, the operation control for editing and reproduction by the control means is not performed.

The invention of claim 2 is an optical disk recording / reproducing apparatus that performs editing for recording data on or deleting data from an optical disk, and reproducing the recorded data. The password input means to be input and the management information of the data recorded on the optical disk loaded are read, and if the read management information includes a password, the read management information The password verification unit that verifies whether the password included in the password and the password input by the password input unit are the same, and the editing and reproduction when the verification result of the password verification unit is not the same There is provided an optical disk recording / reproducing apparatus characterized by comprising control means for performing operation control.

According to this configuration, the password verification unit reads the management information of the data recorded on the optical disc that is recorded on the loaded optical disc, and if the read management information includes a password, It is verified whether the password included in the read management information is the same as the password input by the password input means. And
When the collation results are not identical, operation control for editing and reproduction by the control means is not performed.

In the invention of claim 3, in the invention of claim 2, further comprising a disk detection means for detecting that an optical disk has been loaded, and the password verification means, when the disk detection means detects the loading of the optical disk, The collation is performed.

According to this configuration, when an optical disk is loaded in order to edit / reproduce data recorded on the optical disk, the disk detection means detects the loading of the optical disk, and receives the detection signal to receive the password verification means. Will perform the collation.

According to the invention of claim 4, in the invention of claim 2 or claim 3, when formatting the loaded optical disk, the password input by the password input means is used for the data recorded on the loaded optical disk. It is characterized by further comprising password recording means for recording in the management information.

According to this configuration, a password for restricting editing for recording data on or deleting data recorded on the optical disc and reproduction of the data recorded on the optical disc is provided for the optical disc. Can be recorded in the management information of the data recorded in

The invention of claim 5 is characterized in that, in the invention of claim 4, the password recording means can select to record the password on an optical disk loaded therein.

According to this, it is possible to selectably create an optical disc on which the password is recorded and an optical disc on which the password is not recorded.

According to a sixth aspect of the present invention, in any of the second to fifth aspects of the present invention, the optical disc is a DVD formatted in DVD-Video, and the management information is the DV of the DVD.
D is management information of data recorded on the basis of DVD-Video in D.

According to this, it is possible to perform editing for recording data or deleting recorded data, and reproduction of recorded data for a DVD formatted in DVD-Video, and , The password recording means converts the loaded DVD into a DVD
-When formatting to Video, the password input by the password input means can be selected to be included in the management information of the data recorded on the loaded DVD based on DVD-Video. Can do.

Further, when a DVD is loaded to edit / reproduce data recorded on the DVD, the disk detection means detects the loading of the DVD, and upon receipt of the detection signal, the password verification means is loaded. When the management information of the data recorded based on the DVD-Video recorded in the DVD is read and the read management information includes a password, the password and the password included in the read management information It is verified whether the password newly input by the input means is the same. If the collation results are not the same, the operation control for editing and reproduction by the control means is not performed.

As described above, according to the present invention, when an optical disk is loaded in order to edit / reproduce data recorded on the optical disk, the disk detection means detects the loading of the optical disk, receives the detection signal, and receives the password. When the collation means reads the management information of the data recorded on the optical disc loaded, and the read management information includes a password, the password included in the read management information And the password input by the password input means are collated, and if the collation results are non-identical, the operation control for editing and reproduction by the control means will not be performed. If a password is recorded in the password, a person who knows the password enters the password. In Kere, it would not be able to perform the editing and reproduction with respect to the optical disk. That is, it is possible to realize an optical disk recording / reproducing apparatus capable of limiting the persons who can perform the editing / reproduction with respect to the optical disk.

In addition, it is possible to select to record the password recorded on the optical disk for restricting the editing / playback operation with respect to the optical disk in the management information of the data recorded on the optical disk when the optical disk is formatted. Therefore, it is possible to realize an optical disc recording / reproducing apparatus capable of selectively creating an optical disc that restricts editing and reproduction and an optical disc that is not restricted.

Further, according to the present invention, when a DVD is loaded to edit / reproduce data recorded on a DVD formatted in DVD-Video, the disk detection means detects the loading of the DVD, and the detection Upon receipt of the signal, the password verification means
When the management information of the data recorded based on the DVD-Video recorded in D is read and the read management information includes a password, the password included in the read management information and the password input If the password newly entered by the means is the same, and the collation result is non-identical, operation control for editing and reproduction by the control means will not be performed, so the DVD If a password is recorded, if the person who knows the password does not enter the password, the DV
The editing / reproduction for D cannot be performed. That is, DVD-Vide
It is possible to realize an optical disc recording / reproducing apparatus capable of limiting the number of persons who can perform the editing / reproduction with respect to a DVD formatted in o.

In addition, a password to be recorded on the DVD for restricting the editing / playback operation for the DVD formatted in the DVD-Video, and the DVD to the DVD-Video.
When the data is formatted, it is possible to selectively record data included in the management information of data recorded on the DVD based on the DVD-Video. An optical disc recording / reproducing apparatus can be realized.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing an electrical configuration of a DVD recorder (optical disc recording / reproducing apparatus) according to an embodiment of the present invention.

A DVD recorder 1 shown in FIG. 1 is a remote control device (for channel setting, various inputs, etc.)
A remote control light receiving unit 2 that receives an optical signal from an optical signal (not shown) and converts it into an electrical signal; various operation switches 3 that are provided on a front panel (not shown) and perform channel setting and various inputs;
In response to an input signal from the remote control light receiving unit 2 or an input signal from the operation switch 3, a command signal or the like corresponding to the content of the input signal is output or a display unit (provided on the front panel)
A front panel control unit 4 that controls the front panel control unit 4 and a command signal from the front panel control unit 4 and outputs a control signal according to the content of the command signal, etc. 4 is provided.

Further, the DVD recorder 1 is a CPU (Cent that performs processing such as control of each unit and predetermined calculation.
ral Processing Unit) 6, a memory 7 for storing a program and data necessary for the processing operation of the CPU 6, and a DVD 9 loaded with the DVD 9, and rotating the DVD 9 and irradiating a laser beam, thereby transferring data to the recording area of the DVD 9. A disk driver 8 is provided for writing and reading recorded data.

Further, the CPU 6 records on the DVD 9 a password recording means 6a for recording a password input to the DVD 9 via the disk driver 8 and a remote control device that transmits an optical signal to the remote control light receiving unit 2 and the operation switch 3. Password verification means 6b that reads out the password that has been read through the disk driver 8, and compares the read password with a password that is newly input by operating the remote control device or the operation switch 3,
The disk driver 8 has disk detection means 8a for detecting that an optical disk is loaded. The password recording unit 6a and the password verification unit 6b can be realized by a program for operating the CPU 6.

In addition, the DVD recorder 1 is a TV broadcast signal of a plurality of broadcasting stations guided from an external input terminal 10 for inputting video signals (video signals and audio signals) from other devices, a TV antenna (not shown) or a TV cable. A tuner 11 that selects a television broadcast signal of a channel desired to be received from the tuner 11 and outputs it as a video signal, an analog switch 12 that turns on / off the video signal from the external input terminal 10 or the tuner 11, and when the analog switch 12 is turned on A video encoder 13 which inputs the output video signal, converts it to a digital signal, creates digital data obtained by encoding the digital signal, and gives it to the CPU 6
The video decoder 14, which combines the digital data output from the CPU 6 into a digital signal and converts the digital signal into an analog signal to create an analog video signal.
And a TV output terminal 15 for supplying an analog video signal from the video decoder 14 to an external television receiver (not shown) (hereinafter referred to as an external TV).

The DVD recorder 1 having such a configuration converts the video signal from the external input terminal 10 or the tuner 11 into digital data and records it on the DVD 9 according to the user's operation.
The digital data recorded in the VD 9 can be read out and reproduced as a video signal and output.

In order to perform such a recording / reproducing operation, management information indicating which data (file) is recorded at which (address) of the disc is recorded on the DVD 9 as will be described later. It is like that. This management information is recorded in the file system area defined in the DVD-Video format after finalization, but is recorded in the temporary area as temporary management information until finalization. The management information management method (file system) until finalization differs depending on the manufacturer of the optical disc apparatus.

FIG. 2 is a schematic diagram schematically showing the configuration of the recording area of the DVD 9. The DVD 9 is divided into a lead-in area 91 in which disc information and the like indicating the type of the disc are recorded, a data area 92, and a lead-out area 93 indicating the end of the disc in order from the inner periphery to the outer periphery. Then, the digital data of the content is recorded in the data area 92 with a file structure as shown in FIG.

FIG. 3 is a diagram showing an example of the file structure of a DVD 9 formatted in DVD-Video. In the data area 92, all files (DVD
-Data to be recorded based on -Video) is to be recorded, and in this example,
One VMG (Video Manager) and two VTSs (Video 1) "Title 1" and "Title 2"
Title Set) is recorded. Note that up to 99 VTSs can be recorded.

VMG is VMGI (Video Manager Information), VMGM_VOBS (Video Object Set for VMG
Menu) and VMGI (BUP) for backup. VMGI is control information for the entire data area 92, and consists of a single file VIDEO_TS.IFO. VMGM_V
OBS is the content for the title selection menu and consists of a single file called VIDEO_TS.VOB. And VMGI (BUP) is a complete copy of VMGI, VIDEO_TS.BU
It consists of a single file called P. VMGM_VOBS may or may not exist, but the other two must be present.

One VTS is VTSI (Video Title Set Information), VTSM_VOBS (Video Obj
ect Set for the VTS Menu), VTSTT_VOBS (Video Object Set for Titles in a VTS), and VTSI (BUP) for backup.

VTSI is control information for the VTS and consists of a single file VTS _ ## _ 0.IFO. Note that VTSM_VOBS is content for various menus in the VTS, but is omitted in this example because it is not necessary.

Also, VTSTT_VOBS is the content for title playback, and it is a single file called VTS _ ## _ 0.VOB (may be multiple files, in which case the 0 part becomes multiple files with other numbers changed) ). VTSI (BUP) is a complete copy of VTSI and consists of a single file called VTS _ ## _ 0.BUP. ## represents an integer of 01 or 02 (maximum, integer from 01 to 99).

Further, the data area 92 is provided with a file system area 92a in which management information after finalization is recorded and a temporary area 92b in which management information before finalization is recorded. In the temporary management area 92b, the address, file size, and recording start time of each file constituting each VTS of each VTS described above are recorded as management information used until finalization. Further, in this management information, an ID for identifying the manufacturer of the apparatus that performed the formatting process of the DVD 9 and a password are recorded.

This password is for realizing the editing restriction function and the reproduction restriction function which are characteristic functions of the present invention in the DVD recorder 1, and may or may not be recorded depending on the user's selection.

The password is recorded on the DVD 9 when the DVD 9 is formatted by the DVD recorder 1. Next, the formatting operation of the DVD recorder 1 will be described using the flowchart shown in FIG.

First, the DVD 9 is loaded into the disk driver 8 of the DVD recorder 1 (step S1).
). At this time, the disk detection means 8a of the disk driver 8 detects that the DVD 9 is loaded and transmits a disk detection signal to the CPU 6.

Next, the CPU 6 that has received the disk detection signal receives the DVD 9 via the disk driver 8.
Is read from the management information and the like, and it is determined from the read management information and the like whether or not the DVD 9 has been formatted (step S2). If it is determined that the DVD 9 has been formatted (Yes in step S2), This formatting operation ends.

On the other hand, if it is determined that it is in an unformatted state (No in step S2), the CPU 6 inquires of the user whether or not to set the above-described password (step S3). At this time, the CPU 6 transmits a video signal to the external TV via the video encoder 14 and the TV output terminal 15, and starts the execution of the process of formatting the DVD 9 into DVD-Video as shown in FIG. And a screen for inquiring the user whether or not to set the password is displayed on the external TV.

Then, when the user sets a password and operates the remote control device that transmits an optical signal to the remote control light receiving unit 2 or the operation switch 3 to notify the CPU 6 (Yes in step S3).
The CPU 6 displays a screen for prompting the input of a password as shown in FIG. 5B on the external TV, receives a password that the user inputs by operating the remote control device or the operation switch 3, and temporarily stores the password. 7 (step S4).

When the input of the password is completed, the CPU 6 drives the disk driver 8 to drive the DVD 9
Is formatted into DVD-Video and D is recorded using password recording means 6a.
When the management information is recorded in the temporary area 92b of the VD 9, the management information is recorded including the password input in step S4 and stored in the memory 7 (step S5). Further, the management information is recorded including an ID for identifying the manufacturer of the DVD recorder 1 to be formatted. At this time, the CPU 6 causes the external TV to display a screen that informs the user that the format is in progress as shown in FIG. When the formatting and password recording are completed, the formatting process ends.

On the other hand, when the user operates the remote control device or the operation switch 3 to notify the CPU 6 that the password is not set (No in step S3), the CPU 6 displays the disk driver 8
To format the DVD 9 into DVD-Video (step S6). In this case, the management information recorded in the temporary area 92b of the DVD 9 does not include the password as described above, but records the ID including the ID for identifying the manufacturer of the DVD recorder 1 to be formatted. At this time, the CPU 6 causes the external TV to display a screen that informs the user that the formatting is in progress as shown in FIG. When the formatting is completed, the formatting process ends.

The DVD recorder 1 has an editing function for converting a video signal from the external input terminal 10 or the tuner 11 into digital data and recording the recorded DVD 9 or deleting the recorded digital data. In addition to a playback function for reading recorded digital data and playing it back to a video signal, the function for restricting the person who performs such editing and playback, that is, an editing restriction function and a playback restriction It has a function.

Next, the editing restriction function and the reproduction restriction function of the DVD recorder 1 will be described with reference to FIG. FIG. 6 is a flowchart showing operations from loading of an optical disk to editing / playback in the DVD recorder 1.

First, when the DVD 9 is loaded in the disk driver 8 of the DVD recorder 1 or when the DVD recorder 1 is turned on with the DVD 9 loaded in the disk driver 8, the disk detection means 8 a of the disk driver 8 detects the DVD 9. Detect and detect the disk detection signal by CPU6
(Step S11).

Next, the CPU 6 that has received the disk detection signal receives the DVD 9 via the disk driver 8.
The disc information recorded in the lead-in area 91 is read out, and it is determined from the read disc information whether the DVD 9 is a compatible medium of the DVD recorder 1 (step S1).
2) If it is determined that the medium is not compatible (No in step S12), the editing / playback operation for the loaded DVD 9 is terminated.

On the other hand, when it is determined that the DVD 9 is a compatible medium for the DVD recorder 1 (step S).
Next, the CPU 6 reads the management information recorded in the temporary management area 92a of the DVD 9 via the disk driver 8, and the DVD 9 is the company, that is, the DVD from the ID included in the read management information. It is determined whether or not it is formatted by an optical disk recording device manufactured by the manufacturer of the recorder 1 (step S13).

If it is determined that the format is not in-house (No in step S13), the editing / playback operation is performed in accordance with the user's operation (step S17). On the other hand, if it is determined that the format is in-house (Yes in step S13), the CPU 6 then determines whether or not a password is included in the read management information (step S14). (No in step S14), the edit / playback operation is performed according to the user's operation thereafter (step S17).

On the other hand, when it is determined that the password is included in the read management information (Yes in step S14), the CPU 6 displays on the external TV a screen for prompting the password as shown in FIG. At the same time, the user receives a password input by operating the remote control device or the operation switch 3 (step S15).

Then, the password verification means 6b verifies whether the input password is the same as the password in the read management information (step S16). If the verification results are the same (Yes in step S16). Thereafter, the editing / playback operation is performed according to the user's operation (step S17).

On the other hand, if the collation results are not identical (No in step S16), the editing / playback operation for the DVD 9 is terminated. At this time, since the input password is not the same as the password recorded on the DVD 9, a screen for notifying the user that the editing / playback operation is not executed may be displayed on the external TV. If the collation results are not the same (No in step S16), the process returns to step S15, receives the password again, and collates the entered password with the password recorded on the DVD 9 again. This may be repeated a predetermined number of times, and the editing / playback operation may be terminated when the collation result is non-identical for the predetermined number of times.

As described above, the DVD recorder 1 of the present embodiment can record a password on a DVD to be formatted at the time of formatting. Also, editing / playback operations for DVDs formatted in-house and recorded with a password cannot be performed unless the same password as the password recorded on the DVD is input.

Therefore, only a person who knows the password recorded on the loaded DVD can use the DV.
Since editing operations such as deletion of recorded data and appending of new data cannot be performed on D, a person other than the original operator who was trying to record predetermined data on the DVD could It is possible to prevent the editing operation from being performed on the DVD without the knowledge of the operator. That is, it is possible to apply editing restrictions that limit who can edit. Thereby, it is possible to solve the problem that the predetermined data intended by the original worker is not recorded on the DVD or unnecessary data other than the predetermined data is recorded.

In addition, since only the person who knows the password recorded on the loaded DVD can reproduce the data recorded on the DVD, the original worker can currently read the recorded data (until finalizing the data). ) If you do not want to allow others to view, you may not be able to play the data recorded on the DVD for viewing, etc., contrary to the intention of the original operator. Can be. That is, viewing restrictions can be imposed.

In addition, since it is possible to select whether or not to record a password on the DVD at the time of formatting, when the user wants to record data on the DVD that does not require editing restrictions and viewing restrictions, the password is not input each time. In both cases, the DVD can be edited and played back, and the usability can be improved.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is a block diagram showing an electrical configuration of a DVD recorder (optical disc recording / reproducing apparatus) according to an embodiment of the present invention. It is a schematic diagram which shows typically the structure of the recording area of DVD. It is a figure which shows an example of the file structure of DVD formatted into DVD-Video. 3 is a flowchart showing a formatting operation of the DVD recorder shown in FIG. It is a figure which shows the example of a screen displayed at the time of formatting or a password input. 2 is a flowchart showing operations from loading of an optical disk to editing / playback in the DVD recorder shown in FIG.

Explanation of symbols

1 DVD recorder (optical disk recording and playback device)
2 Remote receiver (password input means)
3 Operation switch (password input means)
4 Front panel control unit 5 Main control unit 6 CPU (control means)
6a password recording means 6b password verification means 7 memory 8 disk driver 8a disk detection means 9 DVD (optical disk)
DESCRIPTION OF SYMBOLS 10 External input terminal 11 Tuner 12 Analog switch 13 Video encoder 14 Video decoder 15 TV output terminal 91 Lead-in area 92 Data area 92a File system area 92b Temporary area 93 Lead-out area

Claims (6)

An optical disc recording / reproducing apparatus that performs editing for recording data or deleting recorded data and reproducing recorded data for a DVD formatted in DVD-Video,
Disc detection means for detecting that a DVD is loaded;
A password input means for entering the password;
When formatting a loaded DVD into DVD-Video, the password input by the password input means is included in the management information of data recorded on the loaded DVD based on the DVD-Video, and recorded. A password recording means for enabling selection, and
When the disc detection unit detects the loading of the DVD, the management information of the data recorded based on the DVD-Video recorded on the loaded DVD is read, and the password is included in the read management information. In this case, password verification means for verifying whether the password included in the read management information and the password newly input by the password input means are the same,
Control means for performing operation control for the editing and reproduction in cases other than when the verification results of the password verification means are not identical;
An optical disc recording / reproducing apparatus comprising: An optical disc recording / reproducing apparatus that performs editing for recording data on or deleting data from an optical disc, and reproducing the recorded data,
A password input means for entering the password;
The management information of the data recorded on the optical disc recorded in the loaded optical disc is read, and if the read management information includes a password, the password included in the read management information and the password input Password verification means for verifying whether the password entered by the means is the same;
Control means for performing operation control for the editing and reproduction in cases other than when the verification results of the password verification means are not identical;
An optical disc recording / reproducing apparatus comprising: 3. The disk detecting unit according to claim 2, further comprising a disk detecting unit for detecting that an optical disk is loaded, wherein the password collating unit performs the collation when the disk detecting unit detects loading of the optical disk. Optical disc recording / reproducing apparatus. It further comprises password recording means for recording the formatted optical disk by including the password inputted by the password input means in the management information of the data recorded on the loaded optical disk. The optical disk recording / reproducing apparatus according to claim 2 or 3. 5. The optical disc recording / reproducing apparatus according to claim 4, wherein the password recording unit can select recording on the optical disc loaded with the password. 6. The optical disk is a DVD formatted in DVD-Video, and the management information is management information of data recorded on the DVD based on the DVD-Video. An optical disc recording / reproducing apparatus according to any one of the above.

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