JP5003393B2 - Information processing apparatus, information processing method, and computer program - Google Patents

Description

  The present invention relates to an information processing apparatus, an information processing method, and a computer program. More specifically, an information processing apparatus and information processing method in which a client (information processing apparatus) mounted with an information recording medium reproduces content stored in the information recording medium using data acquired from a server, and It relates to computer programs.

  Various data such as audio data such as music, image data such as movies, game programs, and various application programs (hereinafter referred to as “contents”) are recorded on a recording medium such as Blu-ray Disc (registered trademark). Alternatively, it can be recorded on an information recording medium (disc) such as a DVD (Digital Versatile Disc) and provided to the user. For example, a Blu-ray Disc (registered trademark) using a blue laser is a high-density recordable disc that can record large-capacity video content as high-quality data and is widely used.

  The content storage disc is provided to the user, and the user can play back and use the content using various playback devices such as a PC (Personal Computer) and a disc player.

Content is recorded on a disc in a predefined format. When content recorded in a predetermined format is reproduced, processing using a playlist recorded on the disc as reproduction order information together with the content becomes possible. The playlist is a list that defines the playback order of content. For example, on disk
Multiple movie contents 1, 2, 3, ...,
A plurality of commercial contents a, b, c...
If these contents are recorded, the playlist
Movie content 1 → Commercial a → Movie content 2 → Commercial b → Movie content 3 → Commercial c
The content playback order is defined, and the content playback order is determined according to the play list, and playback processing is performed. Note that the number of playlists is not limited to one, and there is a playlist that can be selected and used by a user from a plurality of playlists.

  For example, in the case of a ROM disk that cannot record new data, the contents stored on the disk are basically fixed. Even immediately after the disc is provided to the user, the content of the reproduced content does not change even after a certain period of time has passed. However, content such as commercials may be switched to the latest commercial or the latest notice information after a certain period of time has elapsed since the disc was provided to the user. In addition, even for main content such as movie content, when an updated version such as a revised version or a revised version is created after the disc is released, there are cases where the user wants to provide the updated version to the user. Furthermore, there is a case where it is desired to provide data that has not been stored on the disk at the time of providing the disk as additional data to the user who owns the disk.

  Patent Document 1 (Japanese Patent No. 3772023) is a prior art that discloses a configuration in which data to be changed later, additional data, and the like are provided from a server to a user via a network. Patent Document 1 discloses a content use system in which a link image corresponding to content stored on a disc is downloaded from a server, stored in a storage unit such as a hard disk of a playback device, and the downloaded link image is played back together with the disc recorded content. Is disclosed. By using such a system, it is possible to obtain the latest commercial from the server as the above-mentioned link image and perform playback processing.

  However, the configuration disclosed in Patent Document 1 is a configuration in which link information is recorded in advance on a disc, and download content recorded on the hard disk is extracted and played according to the link information, and playback timing is controlled. Therefore, at the time of playback, the control is performed such that the elapsed time from the start of playback of the content stored on the disc is measured, and playback of the disc content is stopped and switched to playback of the downloaded content on the hard disk at a preset time.

  The configuration disclosed in Patent Document 1 is based on the premise that a certain content is provided from a server from the time of release of the disc, and link information is recorded in advance on the disc based on that premise. . Therefore, it is not assumed that subsequent data that is not scheduled at the time of disc release will be provided to the user, such data will be provided to the user later from the server and played instead of the content stored on the disc. I can't. Further, since it is necessary to record link information on the disc in advance, there is a problem that subsequent data cannot be used on a disc on which no link information is recorded. In addition, it is necessary for the playback device to measure the elapsed time from the start of content playback, and there is a problem that the burden on the playback device increases.

Also, when a content providing configuration is made such that a disc storing content is distributed to an unspecified number and only users who have performed a predetermined procedure can use the content stored on the disc, for example, encryption of the content stored on the disc It is possible to consider a system in which an encryption key is provided to a specific user at a later date. In such a case, for example, a user-side client having a disk accesses the server and obtains a key. For example, when one encryption key is set for the disk storage content, 1 If all of the content stored on the disc can be used with one encryption key and you want to allow playback of only specific content, you must divide the content and set multiple encryption keys and distribute them to each user. The combination of encryption keys to be increased increases the load on the server side. Furthermore, there is a problem that the decoding process at the time of content reproduction is complicated on the user side.
Japanese Patent No. 3772023

  The present invention has been made in view of such a situation. For example, as a configuration in which a playlist corresponding to content stored on a disc is distributed from a server, the disc is distributed to an unspecified number of users and a predetermined procedure is executed. Information processing apparatus, information processing method, and computer program capable of setting various reproducible contents according to the user without complicating the processing as a configuration in which a playlist is distributed from the server only to the selected client The purpose is to provide.

The first aspect of the present invention is:
An information processing apparatus for executing playback processing of a disc recording content,
A data processing unit for executing content playback using a playlist in which content playback order information is recorded;
The data processing unit
An identifier for identifying the disc or content recorded on the disc is transmitted to the server, the playlist is received from the server, stored in the local storage unit, and the recorded content is played back using the playlist stored in the local storage unit An information processing apparatus is characterized by executing processing.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the disc is a disc storing content on which no playback playlist is recorded, and the data processing unit records the playback playlist on the disc. It is characterized in that a playlist to be applied to playback of content that has not been received is received from the server, and playback processing of disc recorded content is executed using the received playlist.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the data processing unit transmits identification data indicating the validity of the disk or the validity of the information processing apparatus to the server, and the identification data in the server is The present invention is characterized in that a playlist used for the reproduction process of the recorded content of the disc is received on condition that the validity of the disc or the validity of the information processing apparatus is confirmed in the applied authentication processing.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the data processing unit receives content and a playlist from the server, stores the content and the playlist in the local storage unit, and uses the playlist stored in the local storage unit. The content stored in the local storage unit is reproduced.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the data processing unit receives a binding file (Binding file) including mapping information between the disk recording content and the content stored in the local storage unit from the server, and stores the binding file locally. Disc recorded content specified by the playlist by content playback processing using mapping information for acquiring the content stored in the local storage section as playback content using the disc recording content information stored in the playlist and recorded in the playlist Instead, the content stored in the local storage unit is reproduced.

Furthermore, the second aspect of the present invention provides
An information processing method to be executed in an information processing apparatus that executes a reproduction process of disc recorded content,
A data processing unit transmits an identifier for identifying a disc or content recorded on a disc to a server, receives a playlist from the server, and stores it in a local storage unit;
A content playback step in which the data processing unit executes a playback process of the disc recorded content using the playlist acquired from the server in the playlist acquisition step;
There is an information processing method characterized by comprising:

  Furthermore, in one embodiment of the information processing method of the present invention, the disc is a disc storing content on which no playback playlist is recorded, and the data processing unit records the playback playlist on the disc. It is characterized in that a playlist to be applied to playback of content that has not been received is received from the server, and playback processing of disc recorded content is executed using the received playlist.

  Furthermore, in an embodiment of the information processing method of the present invention, the playlist acquisition step is a process in which the data processing unit transmits identification data indicating the validity of the disc or the validity of the information processing apparatus to the server. As a result of the authentication process applying the identification data in the server, the playlist used for the playback process of the content recorded on the disc on the condition that the validity of the disc or the validity of the information processing device is confirmed It is the step which receives.

  Furthermore, in an embodiment of the information processing method of the present invention, the information processing method further includes the data processing unit receiving the content and the playlist from the server and storing the content and the playlist in the local storage unit. The method includes the step of executing reproduction of the content stored in the local storage unit using the stored playlist.

  Furthermore, in an embodiment of the information processing method of the present invention, the information processing method further includes a binding file (Binding) in which the data processing unit includes mapping information between the disc recording content and the content stored in the local storage unit from the server. file) is received and stored in the local storage unit, and the content playback process using the mapping information for acquiring the content stored in the local storage unit as playback content using the disc recording content information recorded in the playlist, It has a step of reproducing the content stored in the local storage unit in place of the disc recorded content specified by the playlist.

Furthermore, the third aspect of the present invention provides
A computer program for executing information processing in an information processing apparatus for executing reproduction processing of disc recorded content,
A playlist acquisition step of sending an identifier for identifying the disc or content recorded on the disc to the data processing unit, receiving the playlist from the server and storing it in the local storage unit;
A content reproduction step for causing the data processing unit to execute a reproduction process of the disc recorded content using the playlist acquired from the server in the playlist acquisition step;
There is a computer program characterized by comprising:

  The computer program of the present invention is, for example, a computer program that can be provided by a storage medium or a communication medium provided in a computer-readable format to a general-purpose computer system that can execute various program codes. . By providing such a program in a computer-readable format, processing corresponding to the program is realized on the computer system.

  Other objects, features, and advantages of the present invention will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

  According to the configuration of an embodiment of the present invention, an information processing apparatus that performs content reproduction using a playlist in which content reproduction order information is recorded has an identifier for identifying a disc or content recorded on the disc. Sending, receiving a playlist from the server, storing it in the local storage unit, and performing playback processing of the disc recorded content using the playlist stored in the local storage unit, for example, an unspecified number of users It is possible to distribute the disc to the client and distribute the playlist from the server only to the client that has executed the predetermined procedure to allow the playback of the content stored on the disc, making it easy to set various reproducible content according to the user It can be carried out.

Details of the information processing apparatus, information processing method, and computer program of the present invention will be described below with reference to the drawings. The description will be made according to the following items.
1. 1. Outline of data stored in information recording medium and information processing apparatus 2. Content download processing by information processing device 3. Content reproduction processing 4. Automatic content download and automatic playback processing 5. Details of download processing according to content type 6. Playlist download provision processing configuration for a playlist unrecorded disc User management processing in server 8. Creating and managing disk storage content and download content

[1. Outline of data stored in information recording medium and information processing apparatus]
First, an example of data stored in an information recording medium used for content reproduction in the information processing apparatus of the present invention and an embodiment of the information processing apparatus will be described. FIG. 1 shows a configuration example of an information recording medium 100 in which content is stored and an information processing apparatus (reproducing apparatus) 150. Here, an example of storing information on a ROM disk as a content stored disk is shown. The information processing apparatus 150 is various information processing apparatuses such as a PC or a reproduction-only apparatus, and includes a drive 120 that executes data reading processing from the information recording medium 100.

  The ROM disk as the information recording medium (disk) 100 is, for example, an information recording medium such as Blu-ray Disc (registered trademark) or DVD, and is manufactured in a disk manufacturing factory with the permission of the right content owner, for example. This is an information recording medium storing legitimate content.

  As shown in FIG. 1, an information recording medium (disc) 100 includes an MKB (encryption key block) generated based on a content 111 and a tree-structured key distribution method known as one aspect of a broadcast encryption method. Media Key Block) 112, a content ID as an identifier of stored content of the information recording medium 100, a volume ID set as identification information for each information recording medium or for each information recording medium in a predetermined number of units, and disc-specific identification information A process management file 113 including a PMSN (Pre-recorded Media Serial Number) corresponding to the media ID of the file, usage control information (Usage Rule) 114 including CCI (Copy Control Information) as content copy / playback control information, Conte Tsu content management unit as use management unit CPS unit key file 115 storing a CPS unit key which is an encryption key set for each content management unit (CPS unit) is stored.

  In this example, the content 111 includes a content management application (BD-J application 1) 116 as program information applied to content download processing from a server, which will be described later. A processing example using the content management application (BD-J application 1) 116 will be described later. Hereinafter, an outline of information stored in the information recording medium 100 will be described.

(1) Content 111
Various contents are stored in the information recording medium (disc) 100. For example, content such as an AV (Audio Visual) stream of video content such as HD (High Definition) movie content which is high-definition moving image data, a game program, an image file, audio data, text data, a Java (registered trademark) application program, etc. is there.

  Among these contents, for example, movie contents, which are main contents, are specific AV format standard data, and are recorded as encrypted data in accordance with the AACS (Advanced Access Content System) standard, which is a standard for content copyright protection technology. That is, the content is classified as a unit (CPS unit), and is recorded on the disc as encrypted content to which a unit key (CPS unit key) corresponding to each unit is applied. On the disc, a CPS unit key file 115 storing a unit key necessary for decrypting content and an MKB (Media Key Block) 112 which is an encryption key block are recorded.

  The content 111 further stores, for example, a Java (registered trademark) application program, a game program, an image file, audio data, text data, and the like as sub-contents. The sub-content may be data that does not follow a specific AV data format.

  Along with main content and sub-content, the content types include various data such as music data, video data, image data such as still images, game programs, WEB content, and the like. Various types of information are included such as content information that can be used in combination with content information that can be used only by data, data from the information recording medium 100, and data provided from a server connected to a network.

(2) MKB
The MKB (Media Key Block) 112 is an encryption key block generated based on a tree-structured key distribution method known as one aspect of the broadcast encryption method. The MKB 112 can acquire a media key (Km) that is a key necessary for content decryption only by processing (decryption) based on a device key (Kd) stored in an information processing apparatus of a user having a valid license. This is a key information block. This is an application of an information distribution method in accordance with a so-called hierarchical tree structure, which enables the acquisition of a media key (Km) only when the user device (information processing apparatus) has a valid license and invalidates it. In the revoked user device, the media key (Km) cannot be acquired.

  The management center that manages the MKB cannot change with the device key stored in a specific user device due to the change of the device key used to encrypt the key information stored in the MKB. An MKB having a configuration can be generated. Accordingly, it is possible to provide an encrypted content that can be decrypted only to a device having a valid license by removing (revoking) an unauthorized device at an arbitrary timing. Details of the content decoding process will be described later.

(3) Process management file The process management file 113 includes a content ID as an identifier of stored contents of the information recording medium 100, a volume ID set as identification information for each information recording medium, or for each information recording medium in a predetermined number of sheets, PMSN (Pre-recorded Media Serial Number) corresponding to a media ID as disc-specific identification information is included. The volume ID is used as key generation information applied to content decryption. These processes will be described later.

(4) Usage control information (Usage Rule)
The usage control information (Usage Rule) 114 includes, for example, copy / playback control information (CCI). That is, the copy restriction information for use control corresponding to the encrypted content 111 stored in the information recording medium 100 and the reproduction restriction information. This copy / playback control information (CCI) can be set in various ways, for example, when it is set as individual CPS unit information set as a content management unit, or when it is set corresponding to a plurality of CPS units. is there.

(5) CPS unit key file As described above, the encrypted content stored in the information recording medium 100 is divided into CPS units set as content management units, and is encrypted by applying a unit-unit encryption key. ing. The information processing apparatus that executes the reproduction process needs to determine the CPS unit to which the content to be reproduced belongs, and perform the decryption process using the CPS unit key as the encryption key corresponding to the determined CPS unit. A file storing data necessary for obtaining the CPS unit key is a CPS unit key file. For content playback, it is necessary to apply not only the CPS unit key but also various other key information and key generation information. These specific processes will be described later.

  FIG. 1 shows an outline of the configuration of an information processing apparatus 150 that executes a reproduction process of content stored in the information recording medium 100. The information processing apparatus includes a drive 120 that executes a process of reading data stored in an information recording medium. The data read by the drive 120 is input to a data processing unit 151 that executes decryption processing and decoding (for example, MPEG decoding) processing of the encrypted content.

  The data processing unit 151 includes a decryption processing unit 152 that performs decryption processing of encrypted content, and a decoding processing unit 153 that performs decoding (for example, MPEG decoding) processing. The decryption processing unit 152 applies various information stored in the memory 154 and read data from the information recording medium 100 to generate a key to be applied to content decryption, and executes decryption processing of the encrypted content 111. To do.

  The memory 154 is a memory composed of a ROM and a RAM used for a program execution area, a data storage area, and the like, and includes a device key [Kd] applied to content decryption processing, a program for executing various processes, and the like. Stored. When decrypting the encrypted content of the information recording medium 100, the information processing apparatus 150 generates a key to be applied to decrypting the content based on the data stored in the memory 154 and the read data from the information recording medium 100. The decryption process of the encrypted content included in the content 111 is executed. Details of the decoding process will be described later.

  Next, an example of the format of encrypted content included in the content 111 stored in the information recording medium will be described with reference to FIG. As described above, the encrypted content stored in the information recording medium is stored after being subjected to encryption processing by assigning a different key to each unit in order to realize different usage control for each unit. That is, the content is divided into content management units (CPS units), subjected to individual encryption processing, and individual usage management.

  When using content, it is necessary to first obtain the CPS unit key assigned to each unit, and based on a predetermined decryption processing sequence by applying other necessary keys, key generation information, etc. Perform data processing and playback. A setting mode of the content management unit (CPS unit) will be described with reference to FIG.

  As shown in FIG. 2, the content has a hierarchical structure of (A) an index 210, (B) a movie object 220, (C) a playlist 230, and (D) a clip 240. When an index such as a title accessed by the playback application is specified, for example, a playback program associated with the title is specified, and a playlist that defines the playback order of contents is selected according to the program information of the specified playback program.

  The play list includes play items as reproduction target data information. The AV stream and the command as the actual content data are selectively read out by the clip information as the playback section defined by the play item included in the playlist, and the AV stream playback and command execution processing are performed. There are a large number of playlists and play items, and a playlist ID and play item ID as identification information are associated with each.

  Note that the format shown in FIG. 2 is an encrypted content format in accordance with AACS regulations, and it is not essential that all of the content 111 stored on the disc is data in accordance with this format. In addition to encrypted data recorded according to this format, various contents such as commercial contents, service contents, Java (registered trademark) program contents can be recorded on the disc. These data may be recorded on the disc as non-encrypted content, and a playlist can be used to play back such content.

  That is to say, the playlist settings shown in FIG. 2 are all examples of playlists that specify playback of only AV streams as encrypted data. It is also possible to set a playlist that defines a playback order for alternately reproducing commercial content that is encrypted data, a playlist for playing one commercial that is non-encrypted data, and the like. When the user reproduces the content, the reproduction is performed by designating the title. One playlist is selected by the title designation by the user, and one or a plurality of reproduction contents are selected according to the selected playlist. Are sequentially selected and played back.

  FIG. 2 shows two CPS units in the encrypted content included in the content 111 recorded on the disc 100. These constitute a part of the content stored in the information recording medium. Each of CPS units 1 and 271 and CPS units 2 and 272 is set as a unit including a clip including a title as an index, a movie object as a playback program file, a playlist, and an AV stream file as content actual data. CPS unit.

  The content management units (CPS units) 1 and 271 include titles 1 and 211 and titles 2 212, playback programs 221 and 222, playlists 231 and 232, clips 241 and clips 242, and these two clips 241. , 242, AV stream data files 261, 262, which are actual data of content, are at least encryption target data, and in principle are encryption keys set in association with the content management units (CPS units) 1, 271. Is set as data encrypted by applying the CPS unit key (Ku1).

  The content management units (CPS units) 2, 272 include applications 1, 213, a playback program 224, a playlist 233, and a clip 243 as indexes, and an AV stream data file 263 that is actual data of the content included in the clip 243. Is encrypted by applying a CPS unit key (Ku2) that is an encryption key that is set in association with the content management units (CPS units) 2 and 272.

  For example, in order for the user to execute an application file or content reproduction process corresponding to the content management units 1 and 271, a unit key as an encryption key set in association with the content management units (CPS units) 1 and 271: It is necessary to acquire Ku1 and execute the decoding process. In order to execute the application file or content reproduction process corresponding to the content management units 2 and 272, a unit key Ku2 as an encryption key set in association with the content management units (CPS units) 2 and 272 is acquired. Therefore, it is necessary to execute the decoding process.

  A specific configuration of the CPS unit key file will be described with reference to FIGS. FIG. 3 shows the structure of the CPS unit key file as a table, and FIG. 4 is a syntax diagram showing the actual file data structure. As shown in FIG. 3, the CPS unit key file is divided for each index information such as a title, and a content management unit number (CPS unit number) corresponding to each index corresponds to an encrypted CPS unit key [Kun]. The data structure is attached.

  An information processing apparatus that executes content reproduction acquires a corresponding CPS unit key based on a unit number (CPS unit number) set for each CPS unit, and executes a decryption process of the CPS unit that is the encrypted content. . FIG. 4 is a syntax diagram showing a data structure corresponding to the CPS unit key file shown in FIG.

  Next, an encrypted content reproduction processing sequence in the information processing apparatus will be described with reference to FIG. The encrypted content is an encrypted content that has been encrypted in units of CPS units as described above.

  The information processing apparatus 150 reads various types of information from the disk 100, and based on the unit key (Ku) generated by the key generation process using the read data and the device key 281 held by the information processing apparatus 150. The decryption process of the encrypted content is executed.

  First, the information processing apparatus 150 reads the device key (Kd) 281 stored in the memory. The device key 281 is a secret key stored in an information processing apparatus that has received a license for content use.

  Next, in step S11, the information processing apparatus 150 applies the device key 281 to execute the decryption process of the MKB 112 stored in the disk 100, and acquires the media key Km. In the MKB 112, the media key Km is encrypted and stored.

  Next, in step S12, a title key generation key Ke () is obtained by an encryption process based on the media key Km acquired in the MKB process in step S11 and the volume ID read from the disc 100 (for example, recorded in the process management file 113). embedded key). This key generation process is executed as a process according to the AES encryption algorithm, for example.

  Next, in step S13, based on the title key generation key Ke (embedded Key) and the encrypted CPS unit key [Kun] obtained from the CPS unit key file 115 read from the disc 100 (see FIGS. 3 and 4). Then, unit key data processing such as encryption processing (AES_H) is executed to obtain the title key Kt.

  Next, in step S14, a unit key Ku is generated by encryption processing (AES_H) based on the title key Kt and the usage control information 114 read from the disc 100, and the encrypted content read from the disc 100 in step S15. On the other hand, a decryption process (for example, AES_D) using a unit key is executed.

  Next, in step S16, necessary decoding processing such as MPEG decoding, decompression, descrambling, and the like is executed to acquire the content 282. The above is the decryption and playback processing sequence of the encrypted content.

[2. Content download processing by information processing device]
The information processing apparatus acquires not only the content recorded on the disc but also the content (downloaded content) from, for example, a server connected via a network, and reproduces the content using both the downloaded content and the information recording medium storage content. Processing can be performed.

  An external content acquisition processing configuration will be described with reference to FIG. FIG. 6 is the same apparatus as the information processing apparatus 150 shown in FIG. In FIG. 1, the data processing unit 151, the memory 154, and the drive 120 are shown as the configuration applied to the content reproduction from the information recording medium. However, the information processing apparatus 150 is further configured by, for example, a hard disk or a flash memory. A local storage unit 155, a communication interface 156 for performing communication via a network, a display unit 157 for displaying content and content information, and further providing a UI function as a user input unit.

  The information processing apparatus 150 is a sub-content that can be used in conjunction with the reproduction of content stored on the disc 100, for example, subtitle data, dubbed data, commercial content, service content when the content stored on the disc 100 is movie content. , Java (registered trademark) programs, and other service data corresponding to content stored on the disk 100 are acquired via the servers 191 and 192, and the acquired data is configured by, for example, a hard disk or a flash memory. Store in the local storage unit 155. When recording the subsequent data, the data processing unit 151 generates or updates a management table storing management information related to the subsequent data, and records the management table in the local storage unit 155.

  The subsequent data stored in the local storage unit 155 is data acquired or generated corresponding to any of the stored contents of the disc 100, and is stored in the local storage unit 155 when the stored content of the disc 100 is played back. The reproduction of the subsequent data selected by the user can be executed together. In this reproduction process, under the control of the data processing unit 151, for example, a VFS (virtual file system) that integrates the content stored in the disk and the content stored in the local storage unit such as a hard disk is constructed and the reproduction process is performed. By the reproduction process based on this VFS, reproduction similar to the reproduction process from one medium becomes possible.

  It is necessary to acquire content from the server before performing content playback processing using the content stored on the disc and the content stored on the local storage unit. An example of this content acquisition processing will be described with reference to FIG. The content acquisition process can be performed in various processing modes. The example shown in FIG. 7 is one example of the processing, and is an example of processing for acquiring content using a combination of three content management applications.

In the processing example of FIG.
(1) First content management application (BD-J application 1) 301 recorded on the disc 100
(2) Second content management application (BD-J application 2) 331 (= 322) provided from the server 191 to the information processing apparatus 150
(3) Third content management application (BD-J application 3) 332 (= 323) provided from the server 191 to the information processing apparatus 150
This is an example of processing using these three content management applications.

  [BD-J application n] indicates a Java (registered trademark) application applied to a Blu-ray Disc (registered trademark) which is a recording / reproducing disc using a blue laser. In the following embodiment, an example in which a Java (registered trademark) application applied to a Blu-ray Disc (registered trademark) is used as a content management application will be described. However, the present invention is not limited to a Blu-ray Disc (registered trademark). The program can be used in an information recording medium, and the program used as a content management application may be a program other than the Java (registered trademark) program.

First, processing executed by these three content management applications will be described.
(1) First content management application (BD-J application 1)
The first content management application (BD-J application 1) is an application that is executed before connection to the server, and executes the following processing.
(A) Processing for confirming whether or not to execute download to user (b) Processing for confirming whether playback device (information processing device) supports network connection or AACS online function (c) Should be accessed Processing to provide URL (d) Management data (org_id, disc_id) of local storage unit, AACS related data update processing (e) Billing processing (optional)
These processes are executed.

(2) Second content management application (BD-J application 2)
The second content management application (BD-J application 2) is an application acquired from the server and executed, and executes the following processing.
(A) Processing for letting the user select a product (download data) (b) Processing for transmitting the product selected by the user to the server (c) Billing processing (optional)
These processes are executed.

(3) Third content management application (BD-J application 3)
The third content management application (BD-J application 3) is an application that is acquired from the server and executed. The third content management application (BD-J application 3) is executed when the download data is recorded in the local storage unit, and executes the following processing.
(A) The contents stored in the disc and the contents stored in the local storage unit are set in a state where they can be used in a virtual file system (VFS) that is set as one virtual media storage content, and AV-related files (contents to be played) are stored locally. Processing to record in the department,
(B) A process for recording an AACS related file (management information) in the local storage unit in a state where it can be used in the VFS;

  In this way, by specializing the processing of each application and acquiring each application from a disk or server as appropriate, the degree of freedom of application update processing is increased, making it easier to use and more sophisticated Service can be provided.

  Each content management application (BD-J app n) is executed in the data processing unit 151 of the information processing apparatus 150, that is, a data processing unit including a CPU or the like having a program execution function. Do. For example, these applications are executed in a VM (virtual machine) that is set as a program execution area by the data processing unit 151 of the information processing apparatus 150.

  The processing sequence of this processing example will be described with reference to FIG. First, the content management application (BD-J1) 321 (= 301) recorded on the disc (ROM disc) 100 is activated. Note that the activation process of the content management application (BD-J1) 321 (= 301) is performed by title selection, as in the content reproduction process. As a process on the user side, the content management application (BD-J1) 321 (= 301) is activated by a title designation process similar to the case of playing movie content.

  In step S101, the information processing apparatus 150 acquires, for example, the process management file 302 on the disc 100 by the content management application (BD-J1) 321 activated by the user's title selection, and corresponds to the content ID, volume ID, and media ID. PMSN which is a serial number to be read is read, and at least one of these disc recording IDs and identification information such as a user ID and an information processing device ID is transmitted to a server 191 which performs a sub-content (download content) providing process. Note that what kind of identification information is transmitted to the server 191 can be freely set by the server 191 side. For example, the content management application (BD-J1) 321 (= 301) is set as an application in which the identification information sending sequence requested by the server 191 is set as a program.

  In step S102, the server 191 generates an allowable processing list that is a list of processing allowed for the user (information processing apparatus 150) based on the identification information included in the received data, for example, the content ID and the user ID. The content management application (BD-J application 2) 331 is selected and provided to the information processing apparatus 150. The server 191 holds content usage condition information corresponding to, for example, a content ID and a user ID, and a content management application (BD-J application 2) that executes processing corresponding to the content ID and the user ID based on this information. 331 is selected and provided to the information processing apparatus 150.

  The information processing apparatus 150 executes processing to which the content management application (BD-J application 2) 322 (= 331) received from the server 191 is applied. The information processing device 150 displays the allowable processing list included in the content management application (BD-J application 2) 322 on the display unit of the information processing device, and the user selects, for example, download content in step S103.

  Based on this selection, the information processing apparatus 150 executes a payment process by transferring the payment data 330 to and from the server 191. The settlement screen is displayed on the display unit of the information processing apparatus, and the user inputs and transmits data necessary for settlement such as a credit card number on the settlement screen. Next, in step S <b> 104, the server 191 permits the process and transmits permission information to the information processing apparatus 150.

  In step S104, the server 191 includes content 334, management data 333, a bind file (Binding file) 335 to be provided to the information processing apparatus 150, and data including a content management application (BD-J application 3) 332 that executes recording processing. Are also transmitted to the information processing apparatus 150. In order to enable falsification verification for these data, it is preferable that a signature of the server 191 is given.

  When the content management application (BD-J application 3) 323 (= 332) received from the server 191 is executed, the information processing apparatus 150 performs signature verification and performs processing for confirming that the data is legitimate data without falsification. . On the condition that the validity is confirmed, in step S105, the content 334, the management data 333, and the bind file (Binding file) 335 are recorded in the local storage unit 155. As a result, management data 341, content 342, and a binding file (Binding file) 343 are recorded in the local storage unit 155.

  Note that the management data (AACS data) 341 (= 333) is management data defined by the AACS (Advanced Access Content System), which is a standard management system for content copyright protection technology, and the content 334 provided by the server 191 is stored in the management data (AACS data) 341 (= 333). In the case of encrypted content, it includes a CPS unit key file storing a key (CPS unit key) applied to the decryption, and further, usage control information corresponding to the provided content, and a medium for acquiring the CPS unit key It is composed of data including an MKB (Media Key Block) which is an encryption key block storing a key.

  A bind file (Binding file) 343 (= 335) is provided to the information processing apparatus 150 by the server 191 and the content 342 (= 334) stored in the local storage unit 155 of the information processing apparatus 150 is stored in the information recording medium (disc). ) This file stores mapping information necessary for constructing a virtual file system (VFS) constructed by the information processing apparatus 150 when played back together with the stored content of 100. The mapping information is information for acquiring the content stored in the local storage unit as the playback content using the disc recording content information recorded in the playlist.

  By using the mapping information recorded in the binding file (Binding file) 343 (= 335), for example, when playing back content using a playlist recorded on the disc 100, a part of the content stored on the disc Can be reproduced by replacing with the downloaded content recorded in the local storage unit 155.

Specifically, for example, on a disc,
Multiple movie contents 1, 2, 3, ...,
A plurality of commercial contents a, b, c...
These contents are recorded, and the playlist
Movie content 1 → Commercial a → Movie content 2 → Commercial b → Movie content 3 → Commercial c
In the case where the playback order of such content is specified, a process of downloading commercials a, b, c from the server 191 and replacing them with the downloaded content recorded in the local storage unit 155, or a new downloaded from the server 191 It is possible to perform processing for reproducing additional content.

That is, as download contents downloaded from the server 191 and recorded in the local storage unit 155,
Commercial x,
Commercial y,
Commercial z,
When these commercial contents are recorded in the local storage unit 155, a virtual file system (VFS) is constructed using the mapping information recorded in the binding file (Binding file) 343 (= 335), and the same play is performed. By executing playback using the list,
Movie content 1 → Commercial x → Movie content 2 → Commercial y → Movie content 3 → Next content notice notice → Commercial z
In this way, the reproduction process can be executed by replacing the content.
A specific example and a usage example of the bind file (Binding file) will be described in detail later.

  The content download processing sequence from the server described with reference to FIG. 7 will be described with reference to the flowchart shown in FIG.

  First, in step S121, a title for designating an application program (BD-J) for downloading content is selected. This process is executed by a user who uses the information processing apparatus 150.

  Next, in step S122, the application program (BD-J application 1) read from the disc 100 is executed by the user's specification. As described above, as a process on the user side, the content management application (BD-J application 1) is activated by a title designation process similar to the case of playing movie content. The application (BD-J application 1) is executed in a VM (virtual machine) set as a program execution area in the information processing apparatus 150.

  Next, in step S123, for example, a process management file on the disc 100 is acquired, PMSN which is a serial number corresponding to the content ID, volume ID, and media ID is acquired, and uploaded to the server 191 that performs processing for providing sub-contents and the like. (Send. As described above, the transmission identifier can be set in various manners such as any one of these disk recording identifiers, a user identifier, an information processing device identifier, or a combination thereof. This process is executed according to the application program (BD-J application 1).

  In step S124, an allowable processing list included in the content management application (BD-J application 2) is displayed as a process to which the content management application (BD-J application 2) received from the server 191 is applied. In step S125, the user selects download contents.

  Next, in step S126, it is determined by the content management application (BD-J app 2) whether the user-selected content is paid content or free content. If it is paid content, the process proceeds to step S127, and the server 191 The settlement processing by transferring the settlement data 331 is executed between the two. The settlement screen is displayed on the display unit of the information processing apparatus, and the user inputs and transmits data necessary for settlement such as a credit card number on the settlement screen.

  When these settlement processes are completed, or when the user-selected content is free content, the process proceeds to step S128, and the information processing apparatus 150 executes the content management application (BD-J application 3) received from the server 191. The content, management data, and binding file (Binding file) are recorded in the local storage unit 155. The content download is completed by the above processing.

[3. Content playback processing]
Next, with reference to the flowchart shown in FIG. 9, a content reproduction process executed in the information processing apparatus 150, that is, a process sequence for reproducing using the stored content of the disc 100 and the downloaded content stored in the local storage unit 155 will be described. To do.

The flow shown in FIG. 9 is executed under the control of the data processing unit 151 of the information processing apparatus 150.
First, in step S141, a virtual file system (VFS) is constructed using a bind file (Binding file) acquired from the server and stored in the local storage unit 155. The virtual file system (VFS) is a virtual file system that is set to integrate the contents stored in a plurality of different storage units and enable playback similar to playback processing from one medium.

  In this example, a VFS is constructed by integrating the stored content of the disc 100 and the stored content of the local storage unit 155. When constructing the VFS, a bind file (Binding file) acquired from the server and stored in the local storage unit 155 is used.

A specific example of a binding file (Binding file) will be described with reference to FIG. The bind file (Binding file) is as shown in FIG.
(A) File name of content entity (downloaded content),
(B) Reproduction designated content file name on the playlist It is set as data corresponding to each of these data.

(A) The file name (downloaded content) of the content entity is the download content acquired by the information processing apparatus 150 and stored in the local storage unit 155 by the download processing from the server 191 described with reference to FIGS. File name.
(B) The reproduction designated content file name on the playlist is the file name of the reproduction content recorded in the playlist used when content reproduction is performed. This file name corresponds to the file name of the content recorded on the disc 100.

  The content reproduction process is performed by sequentially selecting content described in a playlist selected by a title designated by the user.

  When the playback specified content file name recorded in the playlist is recorded as [(b) playback specified content file name on the playlist] of the binding file (Binding file), the [(b) on the playlist The virtual file system (VFS) is set so that [(a) the file name of the content entity (downloaded content)] recorded corresponding to the reproduction designated content file name] is selected as the reproduction content. That is, the virtual file system (VFS) is constructed as a file system holding mapping information.

  By using a virtual file system (VFS) including mapping information, the information processing apparatus 150 searches for a VFS using a disk storage file name recorded in a playlist as a search key, and then stores a local storage unit based on the mapping information. The file name (downloaded content) can be obtained as a search result, and the file in the local storage unit can be acquired and reproduced.

  If the reproduction designated content file name recorded in the playlist is not recorded as [(b) reproduction designated content file name on the playlist] of the binding file (Binding file), it is recorded in the playlist. The virtual file system (VFS) is set so that the reproduction designated content file name is selected as the reproduction content as it is. This content is content recorded on the disc 100.

  As described above, the mapping information of the bind file (Binding file) is mapping information for reproducing the downloaded content instead of reproducing the content recorded on the disc, and the data processing unit 151 of the information processing apparatus 150. 9 performs VFS construction processing using a binding file (Binding file) at the time of construction of the virtual file system (VFS) in step S141 of the flow shown in FIG. 9, thereby constructing a virtual file system (VFS) including mapping information. Is done.

  In step S142, the user inputs reproduction content designation information, that is, a title is selected. The title is used as information for selecting a certain playlist. Next, in step S143, the playback content is selected based on the content name described in the playlist selected according to the designated title. This reproduction content is selected based on the virtual file system (VFS) constructed in step S141. That is, it is a VFS constructed using a binding file (Binding file), and the content in which mapping information is recorded in the binding file (Binding file) is acquired not from the disc but from the local storage unit.

  In step S144, it is determined whether or not the acquired content is encrypted content. If the acquired content is encrypted content, a content decrypting process is executed in step S145. This process is the process described above with reference to FIG. After the content decryption is completed, or when the acquired content is an unencrypted content, the process proceeds to step S146 without decrypting the content, and the content is reproduced.

  As described above, the data processing unit of the information processing apparatus uses the disc recording content information recorded in the playlist to obtain the playlist by the content acquisition processing using the mapping information for acquiring the content stored in the local storage unit as the playback content. Play the content stored in the local storage instead of the disc recorded content specified by

In the information processing apparatus of the present invention, when the content name recorded as the playback target content in the playlist is recorded as [(b) playback specified content file name on the playlist] of the binding file (Binding file), Since the [(b) content entity file name (downloaded content)] recorded corresponding to the [(b) playback specified content file name on the playlist] is selected as the playback content, playback is performed. For example, as described above, for example, on a disc,
Multiple movie contents 1, 2, 3, ...,
A plurality of commercial contents a, b, c...
These contents are recorded, and the playlist
Movie content 1 → Commercial a → Movie content 2 → Commercial b → Movie content 3 → Commercial c
When the playback order of such content is defined, the download content downloaded from the server 191 and recorded in the local storage unit 155, that is, commercials a, b, and c, that is,
Commercial x,
Commercial y,
Commercial z,
Playback replaced with these downloaded commercial content, that is,
Movie content 1 → Commercial x → Movie content 2 → Commercial y → Movie content 3 → Commercial z
In this way, the reproduction process can be executed by replacing the content.

  In this way, by constructing a virtual file system (VFS) using the mapping information recorded in the binding file (Binding file), playback of new download content can be performed without changing playlist data. Will be.

  A specific example of the content reproduction process when the bind file (Binding file) is not used and the content reproduction process example when the bind file (Binding file) is used will be described with reference to FIGS. 11 and 12.

  FIG. 11 shows an example of content playback processing when a bind file (Binding file) is not used. In step S201, the information processing apparatus 150 loaded with the disc 100 presents to the user a title list for use in designating playback content. For example, the title list is displayed on the display unit of the information processing apparatus 150.

  In step S202, the user selects a title to be reproduced from the title list. The information processing apparatus 150 selects a playlist associated with the title according to the selected title. Note that the title information and the playlist are information recorded on the disc 100 in advance. Here, the user desires to reproduce the commercial content [CM # 1] recorded on the disc 100, and the playlist in which only the commercial content [CM # 1] is recorded as the reproduction content is selected and reproduced. Show.

  A content name as content designation information is recorded in the playlist. In this case, the file name of the commercial content [CM # 1] recorded on the disc 100 is recorded in the playlist, and the information processing apparatus reads the commercial content from the disc 100 based on the recording information of the playlist in step S203. The content [CM # 1] is acquired and the reproduction process is performed.

  FIG. 12 shows an example of content reproduction processing when a bind file (Binding file) is used. The information processing apparatus 150 stores the commercial content [CM # 3] 352 downloaded from the server and the bind file (Binding file) 351 in the local storage unit 155.

  The information processing apparatus 150 loaded with the disk 100 constructs a virtual file (VFS) in step S221. When this VFS is constructed, processing using mapping information (see FIG. 10) of a bind file (Binding file) is performed. That is, when the content name recorded as the playback target content in the playlist is recorded as [(b) playback specified content file name on playlist] of the binding file (Binding file), the [(b) play A VFS in which [(a) file name of content entity (downloaded content)] recorded corresponding to the reproduction designated content file name on the list] is set as the access content is constructed.

  Next, in step S222, the information processing apparatus 150 presents the user with a title list for use in specifying playback content. For example, the title list is displayed on the display unit of the information processing apparatus 150. In step S223, the user selects a title to be reproduced from the title list. The information processing apparatus 150 selects a playlist associated with the title according to the selected title. Note that the title information and the playlist are information recorded on the disc 100 in advance. Here, a case is shown in which the user desires to reproduce the commercial content [CM # 3], and a playlist in which only the commercial content [CM # 3] is recorded is selected and reproduced.

  A content name as content designation information is recorded in the playlist. In this case, the file name of the commercial content [CM # 3] 350 recorded on the disc 100 is recorded in the playlist. The information processing apparatus 150 acquires virtual file system (VFS) setting contents according to the file names recorded in the playlist.

  The virtual file system (VFS) records the file name of the local storage unit 155 by mapping processing as the access destination of the content name [CM3] recorded in the playlist. That is, download content [CM3] 352 is designated as a content access destination. In step S224, the data processing unit 151 of the information processing device 150 acquires the commercial content [CM # 3] 352 downloaded from the local storage unit 155 according to the virtual file system (VFS) set according to such mapping information. To perform playback processing.

  The virtual file system (VFS) is constructed prior to the title designation process by the user. For example, a virtual file system (VFS) construction process is performed when the disk 100 is loaded in the information processing apparatus. A virtual file system (VFS) construction sequence will be described with reference to FIG.

  When the information processing apparatus detects that a disk is loaded in the information processing apparatus, in step S251, the information processing apparatus determines whether there is a disk-compatible binding file (Binding file) in the local storage unit. Various disks may be mounted on the information processing apparatus, and an identifier of each disk is recorded in association with a bind file (Binding file) recorded in the local storage unit.

  Specifically, a directory corresponding to each disk is set in the local storage unit, and if there is a binding file (Binding file) corresponding to each disk, the binding file (Binding file) is recorded in the directory. The information processing apparatus verifies whether or not a bind file (Binding file) is recorded in a directory corresponding to the loaded disc.

  If the bind file (Binding file) is not recorded in the directory corresponding to the loaded disc, the process proceeds to step S252, and a file system that does not use the bind file (Binding file) is constructed and the file system constructed in step S254. Play content using.

  On the other hand, if it is determined in step S252 that the bind file (Binding file) is recorded in the directory corresponding to the loaded disc, the process proceeds to step S253, and the virtual file system (VFS) is used using the bind file (Binding file). The content is reproduced using the virtual file system (VFS) constructed in step S254.

  In constructing the VFS in step S253, processing using mapping information (see FIG. 10) of the bind file (Binding file) is performed. That is, when the content name recorded as the playback target content in the playlist is recorded as [(b) playback specified content file name on playlist] of the binding file (Binding file), the [(b) play A VFS is set in which [(a) file name of content entity (downloaded content)] recorded corresponding to the reproduction designated content file name on the list] is selected as the reproduction content.

  That is, the virtual file system (VFS) is constructed as a file system holding mapping information. When the virtual file system (VFS) holding the mapping information is searched using the disk storage file name recorded in the playlist as a search key, the file name (downloaded content) of the local storage unit mapped from the file name is accessed. The information processing apparatus uses the VFS that holds the mapping information, and is specified by the local storage unit storage file name that is mapped from the recorded file name of the playlist. A file in the local storage unit can be acquired and played back.

  In step S255, it is determined whether or not title switching by the user has occurred. If title switching has occurred, the process returns to step S251 to repeat the processing. This is because a binding file (Binding file) that is newer than the previously read binding file (Binding file) may be downloaded during the reproduction process, and in such a case, a new binding file (Binding file) is used. This is because the virtual file system (VFS) is reconstructed. Note that a plurality of binding files (Binding file) for one disk may be stored by assigning a version number to the local storage unit, or a new binding file (Binding file) may be stored in an old binding file (Binding file). It is good also as a structure which overwrites.

[4. Automatic content download and playback process]
As described above, in the content reproduction process using the mapping information, the reproduction content is selected based on the content name described in the playlist. If the content name recorded in the playlist at this time is recorded as [(b) Playback specified content file name on the playlist] in the binding file (Binding file), the content name is based on the binding file (Binding file). [(A) File name of content entity (downloaded content)] defined by the mapping information is selected as the playback content.

  For example, when the content downloaded from the server is commercial (CM) content, and this commercial (CM) content is recorded in the local storage unit, it is recorded in the local storage unit by using a specific playlist. It is also possible to set so that commercial (CM) content is always reproduced.

  With reference to FIG. 14, processing for automatically reproducing commercial (CM) content acquired from the server and stored in the local storage unit 155 will be described. The information processing apparatus 150 stores the commercial content [CM # 3] 352 downloaded from the server and the bind file (Binding file) 351 in the local storage unit 155.

  The information processing apparatus 150 loaded with the disk 100 constructs a virtual file (VFS) in step S271. When this VFS is constructed, processing using mapping information (see FIG. 10) of a bind file (Binding file) is performed. That is, when the content name recorded as the playback target content in the playlist is recorded as [(b) playback specified content file name on playlist] of the binding file (Binding file), the [(b) play A VFS including mapping information for selecting [(a) file name of content entity (downloaded content)] recorded corresponding to reproduction designated content file name on list as reproduction content is constructed.

  Next, the user requests automatic reproduction in step S272. In accordance with the request, the information processing apparatus 150 selects a playlist for automatic reproduction processing that is set in advance as a default. The playlist is information that has been recorded on the disc 100 in advance. This automatic playback playlist is a playlist in which commercial content [CM # 3] is recorded as the first playback content.

  In the playlist, the file name of the commercial content [CM # 3] is recorded as content designation information. The information processing apparatus 150 acquires virtual file system (VFS) setting contents according to the file names recorded in the playlist.

  The virtual file system (VFS) is configured to designate a file in the local storage unit, not a file on the disk, as an access destination of the content name [CM3] recorded in the playlist. That is, the file name of the local storage unit 155 is set as an access destination by the mapping process. That is, the download content [CM3] 352 stored in the local storage unit 155 is designated as the access destination. In step S273, the data processing unit 151 of the information processing device 150 acquires the commercial content [CM # 3] 352 downloaded from the local storage unit 155 according to the virtual file system (VFS) including such mapping information. Perform playback processing.

  The basic sequence of the content download process has been described with reference to the flowchart shown in FIG. 8, but in the process described with reference to FIG. 8, first, content that can be provided from the server to the user side. This list has been presented as an example of processing for selecting content to be downloaded by the user. However, for example, assuming a situation in which the commercial content is regularly updated, the server that provides the commercial content always provides the user with the latest commercial content and ensures that the information processing device on the user side I want to play it. An example of automatic content download processing and a playback sequence corresponding to such a request will be described below.

  First, a processing sequence for automatically downloading the latest content from the server will be described with reference to the flowchart shown in FIG. FIG. 15 shows an example in which the download content is commercial content.

  First, in step S281, the user selects an application program (BD-J application) for downloading content by title. This process is executed by a user who uses the information processing apparatus 150. Next, in step S282, the application program (BD-J application) read from the disc 100 according to the user's designation is executed by the information processing apparatus 150, and recorded from the disc 100 to a disc-compatible ID, for example, a process management file. The obtained content ID, volume ID, PMSN which is a serial number corresponding to the media ID, and at least one of these identifiers are acquired.

  Next, in step S283, the disc-compatible identifier (ID) recorded on the disc acquired in step S282 and the list of commercial contents stored in the local storage unit 155 by the information processing device 150 are uploaded to the server. The application program (BD-J application) includes an execution program for processing to generate a list of commercial contents stored in the local storage unit 155 and transmit it to the server. Processing is executed according to this application program.

  Steps S284 and S285 are processing on the server side. In step S284, the server executes the CM content stored on the disc based on the disc recording identifier (ID) received from the information processing apparatus, the CM content list, and the local content. It is confirmed whether or not CM content to be provided to the user other than the CM content stored in the storage unit is held on the server side.

  If the server does not hold any new CM content to be provided to the user, the process ends. If the server holds new CM content to be provided to the user, the latest CM content is transmitted to the information processing apparatus on the user side in step S285. At this time, a binding file (Binding file) in which mapping information is recorded and a playlist file are also transmitted as necessary.

  Step S286 is processing of the information processing apparatus on the user side, and the information processing apparatus stores the CM content received from the server in the local storage unit of the information processing apparatus on the user side. At this time, a bind file (Binding file) and a playlist file in which mapping information is recorded are also received as necessary and stored in the local storage unit.

  Next, the content automatic reproduction processing sequence will be described with reference to the flowchart shown in FIG. This sequence corresponds to the processing described above with reference to FIG. The information processing apparatus 150 stores the commercial content downloaded from the server and the bind file (Binding file) in the local storage unit 155.

  The information processing apparatus loaded with the disk reads the binding file (Binding file) from the local storage unit 155 in step S291, and uses the mapping information (see FIG. 10) recorded in the binding file (Binding file) in step S292. To construct a virtual file (VFS).

  By this virtual file (VFS) construction process, the content name recorded as the playback target content in the playlist is recorded as [(b) playback specified content file name on playlist] of the binding file (Binding file). If it is set, the [(a) content entity file name (downloaded content)] recorded corresponding to the [(b) playback specified content file name on the playlist] is set to be selected as the playback content.

  Next, in step S293, the user designates a title and requests content reproduction. This title is a play list for reproducing CM content. For example, it is a playlist for automatic reproduction processing selected by automatic reproduction described with reference to FIG. The information processing apparatus sequentially plays back the content recorded in the playlist.

  In step S294, it is determined whether or not the content accessed by the index (content file name) as the content designation information recorded in the playlist is in the local storage unit. If the content is on the disc, the process proceeds to step S295. Then, the CM content is read from the disc, the CM content is reproduced in step S297, and if the content accessed by the index (content file name) recorded in the playlist is in the local storage unit, the process proceeds to step S296. In step S297, the CM content is read from the local storage unit, and the CM content is reproduced.

  Note that the content access destination determination in step S294 is a process executed using a virtual file (VFS) constructed using the mapping information (see FIG. 10) recorded in the bind file (Binding file). is there. That is, when the content name recorded as the playback target content in the playlist is recorded as [(b) playback specified content file name on playlist] of the binding file (Binding file), the [(b) play [(A) File name of content entity (downloaded content)] recorded corresponding to the reproduction designated content file name on the list] is extracted as the reproduction content.

[5. Details of download processing according to content type]
In the above processing example, the commercial content (CM) is described as an example of the content downloaded from the server. However, the content downloaded from the server is not limited to the commercial, for example, main content such as AV stream content, Java (registered trademark) application program (BD-J app), playlists, and usage control information (Usage Rule) may be downloaded in addition to these normal contents. Hereinafter, a specific download processing sequence for each of these data will be described.

(5.1. Commercial content download processing example)
First, a commercial content download process example will be described with reference to FIG. The example shown in FIG. 17 is an example in which new commercial content (CM # 4) 401 is added instead of replacing the commercial content recorded on the disc 100. In this case, since the play list 411 recorded on the disc 100 does not include the reproduction designation information of the commercial content (CM # 4) 401 downloaded and acquired from the server 191, the commercial content (CM #) that is the download content is not included. 4) The new playlist 402 in which 401 is recorded as reproduction content information is also downloaded from the server 191 and stored in the local storage unit 155 of the information processing apparatus 150.

  First, in step S301, the content management application (BD-J app) recorded on the disc 100 is activated via the input unit (UI) of the information processing apparatus 150 with the disc 100 mounted thereon. This process corresponds to the activation process of the content management application (BD-J1) 321 described above with reference to FIG. As described above, as a process on the user side, the content management application (BD-J1) is activated by a title designation process similar to that for reproducing movie content.

  By executing the content management application (BD-J app) by the information processing apparatus 150, the information processing apparatus 150 corresponds to the identification information recorded on the disk from the disk 100 in step S302, for example, content ID, volume ID, and media ID. At least one of the PMSNs that is a serial number to be acquired is acquired and transmitted to a server 191 that performs a content providing process. The sending information to the server 191 only needs to be able to tell the server which content is being played back. The content ID, the volume ID, the PMSN that is the serial number corresponding to the media ID, and any of these Any data or data that can identify other playback discs may be used. Furthermore, it is good also as a setting which sends user ID, information processing apparatus ID, etc. by the setting of a content management application (BD-J1).

When the server 191 receives the download request from the information processing apparatus 150, the server 191 acquires the download content from the database based on the received disc record identification information and transmits it to the information processing apparatus 150. In this case, the transmission data is
(A) Commercial content (CM # 4) 401,
(B) Playlist file (PlayList file # 2) 402,
(C) Binding file 403,
These are the three data.

  The playlist file (PlayList file # 2) 402 is a playlist including the commercial content (CM # 4) 401 as the playback content. The information processing apparatus 150 receives these data from the server 191 and stores them in the local storage unit 155 in step S303.

By this processing, the local storage unit 155 stores the following data, that is,
(A) Commercial content (CM # 4) 401,
(B) Playlist file (PlayList file # 2) 402,
(C) Binding file 403,
These data are recorded.

In the state after these data recordings, if the playback is performed with the playlist file (PlayList file # 2) 402 selected as a playback playlist, the content playback including the commercial content (CM # 4) 401 is performed. For example, a playlist file (PlayList file # 2) 402 is
Movie Title # 2 → CM # 3 → CM # 4
In the case of having such playback designation information, playback of CM # 4 in the local storage unit 155 is performed following playback of Movie Title # 2 and CM # 3 from the disc 100.

(5.2. Program content download processing example)
Next, an example of a program content download process will be described with reference to FIG. The example shown in FIG. 18 is an example in which an updated version of the BD-J app # 2 (BD-J app # 2) 441 that is the program content recorded on the disc 100 is acquired from the server 191.

  First, in step S321, the user activates the content management application (BD-J app) recorded on the disc 100 via the input unit (UI) of the information processing apparatus 150 on which the disc 100 is mounted. This process corresponds to the activation process of the content management application (BD-J1) 321 described above with reference to FIG.

  By executing the content management application (BD-J app) by the information processing apparatus 150, the information processing apparatus 150 corresponds to the identification information recorded on the disk from the disk 100 in step S322, for example, content ID, volume ID, and media ID. At least one of the PMSNs that is a serial number to be acquired is acquired and transmitted to a server 191 that performs a content providing process. Furthermore, in this processing example, a program component list corresponding to the BD-J application # 2 (BD-J app # 2) 441 that is the program content for which an updated version is acquired is transmitted to the server 191. In the content management application (BD-J1), a sequence is defined so as to execute a process of generating and transmitting a program component list corresponding to the BD-J application # 2 (BD-J app # 2) 441. . Further, depending on the setting of the content management application (BD-J1), a user ID, an information processing apparatus ID, or the like may be sent.

  When the server 191 receives the download request from the information processing apparatus 150, the server 191 acquires download content corresponding to the identification information from the database based on the received disc identification information and the like, and further, BD-J application # 2 (BD-J The difference from the updated BD-J app # 2 (BD-J app # 2) 421 is calculated with reference to the program component list corresponding to app # 2) 441 and is not included in the received component list Only the component is selected and transmitted to the information processing apparatus 150.

The server 191 holds a data group that can be transmitted in component units as the BD-J application # 2 (BD-J app # 2) 421, and does not send the components held by the information processing apparatus 150, but only the difference. Send. In this case, the transmission data is
(A) BD-J app # 2 (BD-J app # 2) difference,
(B) Binding file 422,
These are the data.

As a result, the local storage unit 155 stores the following data:
(A) BD-J app # 2 (BD-J app # 2) difference data 431,
(B) Binding file 422,
These data are recorded.

  When the BD-J app # 2 (BD-J app # 2) is played after downloading these data, the old version of the BD-J app # 2 (BD-J app # 2) recorded on the disc 100 is played. Thus, a reproduction process that combines 441 and the additional component included in the BD-J app # 2 (BD-J app # 2) difference data 431 recorded in the local storage unit 155 is executed.

  As described above, the data processing unit of the information processing apparatus 150 transmits the component information of the program content stored in the disc 100 to the server 191 and receives the program component corresponding to the difference from the disc stored program content from the server 191. The program is stored in the local storage unit 155, and a program execution process using both the disk storage program and the local storage unit storage program is performed.

  In addition, although the process example demonstrated above is set as the structure which performs the difference calculation process of BD-J application # 2 (BD-J app # 2) in the server 191, BD-J application # 2 (BD-J app) # 2) The configuration may be such that all data 421 is transmitted, the difference calculation is executed on the information processing apparatus 150 side, and only the difference is stored in the local storage unit 155, or the BD-J application # 2 (BD-J (app # 2) All data of 421 may be recorded in the local storage unit 155 as it is, and the BD-J application # 2 (BD-J app # 2) 441 of the disc 100 may be set not to be used.

  Note that the setting of the bind file (Binding file) 422 is also a setting corresponding to the setting mode. That is, mapping is not set for the read portion of the old version of the BD-J app # 2 (BD-J app # 2) 441 recorded on the disc 100, and the old version of the BD-J app # 2 (BD- For mapping data included in the BD-J application # 2 (BD-J app # 2) difference data 431 recorded in the local storage unit 155 instead of the J app # 2) 441, mapping information is a binding file (Binding). file) 422.

(5.3. Main content download processing example)
Next, an example of a main content download process such as an AV stream as movie content will be described with reference to FIG. In the example shown in FIG. 19, new main content (Movie Title # 3) 451 different from the main content (Movie Title # 1, # 2) including an AV stream such as a movie recorded on the disc 100 is processed on the user side. This is an example provided to the device 150.

  In the case of this example, the playlists # 1 to # n461 recorded on the disc 100 do not include the reproduction designation information of the main content (Movie Title # 3) 451, so the main content (Movie Title # 3) that is the download content is included. A new playlist 452 in which 451 is recorded as the content to be played is also downloaded from the server 191 and stored in the local storage unit 155 of the information processing apparatus 150.

  The playlist 452 is a playlist in which main content (Movie Title # 3) 451 that is download content is recorded as a content to be played. The play list 452 may be a play list that is intended for reproduction of only the main content (Movie Title # 3) 451, but may be configured to include other disc storage content as reproduction designated content. In this example, the playlist downloaded from the server 191 is one example of playlist # n + 1, 452, but playlist # n + 1 is set as a plurality of playlists set with a plurality of different playback order information. It is good also as a structure which downloads-# n + m.

  The process of each step in the flow of FIG. 19 will be described. First, in step S341, the content management application (BD-J app) recorded on the disc 100 is activated via the input unit (UI) of the information processing apparatus 150 on which the user has loaded the disc 100. This process corresponds to the activation process of the content management application (BD-J1) 321 described above with reference to FIG.

  As a result of execution of the content management application (BD-J app) by the information processing device 150, the information processing device 150 receives at least one of PMSN, which is a serial number corresponding to the content ID, volume ID, and media ID from the disc 100 in step S342. The disc recording identifier is acquired and transmitted to the server 191 that performs processing for providing content and the like. The sending information to the server 191 only needs to be able to tell the server which content is being played back. The content ID, the volume ID, the PMSN that is the serial number corresponding to the media ID, and any of these Any data or data that can identify other playback discs may be used. Other settings including a user ID, a device ID, and the like may be used.

When the server 191 receives the download request from the information processing apparatus 150, the server 191 obtains download content corresponding to the identification information from the database based on the received disc identification information and transmits it to the information processing apparatus 150. In this case, the transmission data is
(A) Main content (Movie Title # 3) 451,
(B) Playlist file (PlayList file # n + 1) 452,
(C) Bind file (Binding file) 453,
These are the three data.

  The playlist file (PlayList file # n + 1) 452 is a playlist in which the main content (Movie Title # 3) 451 is included as playback content.

An example of a playlist file that the server 191 transmits to the information processing apparatus 150 will be described with reference to FIG. As described above, a playlist is a file that defines the playback order of content. The example shown in FIG.
The number of streams corresponding to the number of playback contents [Stream number]: k,
Stream file index (Stream file index): For example, the file name of each of the k streams (contents),
These data are recorded.

  In the stream file index (Stream file index), the file name of the file created by the content editor (Authoring facility) and held by the server 191 is recorded. At least an index of the content file to be downloaded is added to this loop.

  As described above, the server 191 includes a playlist file (PlayList file # n + 1) 452 including an updated playlist (Updated PlayList) to which an index (Index) corresponding to the main content (Movie Title # 3) 451 provided to the user is added. Is also provided to users along with the content.

  As described above, the playlist 452 may be a playlist for which only the main content (Movie Title # 3) 451 is to be reproduced, but may be configured to include other disc storage contents as reproduction designated contents. . For example, when the server 191 creates and provides a playlist that includes all of the content stored on the disc owned by the user and the newly provided content as playback content, the number of streams corresponding to the number of playback content [number of streams ]: K is the total number of contents (number of streams) stored on the user's disc and the number of newly provided contents (number of streams), and all file names are recorded in the index. Become. In addition, since processing such as dividing one content into a plurality of streams is possible, the number of contents does not always match the number of streams.

The information processing apparatus 150 receives these data from the server 191 and stores them in the local storage unit 155 in step S343. By this processing, the local storage unit 155 stores the following data, that is,
(A) Main content (Movie Title # 3) 451,
(B) Playlist file (PlayList file # n + 1) 452,
(C) Bind file (Binding file) 453,
These data are recorded.

  In the state after recording these data, if playback is performed by selecting the playlist file (PlayList file # n + 1) 452 as a playback playlist, content playback including the main content (Movie Title # 3) 451 is performed.

(5.4. Usage Control Information (Usage Rule) Download Processing Example)
Next, an example of download processing of usage control information (Usage Rule) will be described with reference to FIG. As described above, the usage control information (Usage Rule) is data including permission / non-permission information on the usage mode of content such as copy / playback control information (CCI) corresponding to the content. When using the content, the content is controlled to be used according to the usage control information (Usage Rule).

  In the example shown in FIG. 21, the usage control information (Usage Rule) 481 recorded in advance on the disc 100 is invalidated, and new updated usage control information (Usage Rule) 471 is transferred from the server 191 to the information processing apparatus 150. It is an example of processing to provide.

  In this example, the usage control information (Usage Rule) recorded on the disc 100 includes the usage corresponding to the main content (Movie Title # 1 to # 2) recorded on the disc 100 and the commercial content # 1 = # 2. Control information is recorded. The updated usage control information (Usage Rule) 471 newly provided from the server 191 also corresponds to the main content (Movie Title # 1 to # 2) and the commercial content # 1 to # 2 recorded on the disc 100. Usage control information is recorded.

  Specifically, for example, for the main content (Movie Title # 1), copying was prohibited for two years after the release of the disc. This is an example of processing in which update update control information (Usage Rule) 471 is provided from the server 191 to the information processing apparatus 150.

  The processing of each step in FIG. 21 will be described. First, in step S351, the user starts the content management application (BD-J app) recorded on the disc 100 via the input unit (UI) of the information processing apparatus 150 on which the disc 100 is mounted. This process corresponds to the activation process of the content management application (BD-J1) 321 described above with reference to FIG.

  By executing the content management application (BD-J app) by the information processing apparatus 150, the information processing apparatus 150 acquires, for example, PMSN, which is a serial number corresponding to the content ID, volume ID, and media ID, from the disk 100 in step S352. The content is transmitted to the server 191 that performs the providing process. The sending information to the server 191 only needs to be able to tell the server which content is being played back. The content ID, the volume ID, the PMSN that is the serial number corresponding to the media ID, and any of these Any data or data that can identify other playback discs may be used.

When the server 191 receives the download request from the information processing apparatus 150, the server 191 acquires usage control information (Usage Rule) as download data corresponding to the identification information from the database based on the received disk identification information and the like. 150. In this case, the transmission data is
(A) Usage control information (Usage Rule) 471,
(B) Binding file 472,
These are the two data.

  In the case of this example, the usage control information (Usage Rule) 471 is data used as replacement data for the usage control information (Usage Rule) already recorded on the disc 100, and the main content ( Movie Title # 1 to # 2) and usage control information corresponding to commercial content # 1 to # 2 are recorded.

The information processing apparatus 150 receives these data from the server 191 and stores the received data in the local storage unit 155 in step S353. By this processing, the local storage unit 155 stores the following data, that is,
(A) Usage control information (Usage Rule) 471,
(B) Binding file 472,
These data are recorded.

  In the state after recording these data, when using content such as reproduction of main content (Movie Title # 1 to # 2) and commercial content # 1 to # 2 recorded on the disc 100, the local storage unit 155 is newly used. Usage control according to the recorded usage control information (Usage Rule) 471 is executed.

  The file name of the usage control information (Usage Rule) 481 recorded on the disc is used by using the mapping information recorded in the bind file (Binding file) 472, and the usage control information ( A file system (VFS) mapped to the file name of (Usage Rule) 471 is constructed. In the reproduction process using the file system (VFS) having the mapping information, the usage control information (Usage Rule) 471 recorded in the local storage unit 155 is read.

  Note that the usage control information (Usage Rule) is often set according to the type of content. In general, usage restrictions on contents such as movies are strict, and usage restrictions are eased on contents such as commercials. A specific data configuration example of usage control information (Usage Rule) will be described with reference to FIGS. FIG. 23 is usage control information (Usage Rule) corresponding to main content (Movie Title) such as a movie, and FIG. 23 is an example of usage control information (Usage Rule) corresponding to commercial content.

The usage control information (Usage Rule) corresponding to the main content (Movie Title) such as a movie has, for example, the following content usage control information as shown in FIG.
(1) EPN (flag for Internet retransmission)
EPN-unasserted: referenced only when CCI is Copy Control Not Asserted (2) CCI (Copy Control Information)
Never Copy: Copy prohibited (3) Image_Constrain_Token (information on resolution limitation)
High Definition Analog Output in High Definition Analog Form: No resolution limitation (4) Digital_Only_Token (information on analog output)
Output of decrypted content is allowed for Analog / Digital Outputs: Both digital and analog can be output (5) APS (information on content protection for analog output)
APS1 on: type 1 (AGC): Macrovision type 1
(6) Type_of_Title (information on whether or not the content requires internet connection during playback)
Basic Title: No internet connection required

Further, the usage control information (Usage Rule) corresponding to the commercial content has, for example, the following content usage control information as shown in FIG.
(1) EPN (flag for Internet retransmission)
EPN-unasserted: Encryption not required (2) CCI (Copy control information)
Copy Control Not Asserted: Recorded as plain text with no copy restrictions (3) Image_Constraint_Token (information on resolution restrictions)
High Definition Analog Output in High Definition Analog Form: No resolution limitation (4) Digital_Only_Token (information on analog output)
Output of decrypted content is allowed for Analog / Digital Outputs: Both digital and analog can be output (5) APS (information on content protection for analog output)
APS off: No analog protection (6) Type_of_Title (information on whether or not the content needs to be connected to the Internet during playback)
Basic Title: No internet connection required

  The usage control information (Usage Rule) shown in FIGS. 22 and 23 is an example of usage control information corresponding to each content type, and various settings are made according to each content.

[6. Provided processing configuration by downloading playlists to a playlist unrecorded disc]
In the above-described content download processing example, the reproduction of the content stored on the disc can be executed by applying a playlist stored in advance on the disc, and additional content and modified content are provided from the server. The main content (Movie Title # n) such as is stored on the disc, and the playlist used for reproducing this content is not recorded on the disc. By downloading from the server, it is possible to set to allow reproduction of the main content (Movie Title # n) recorded on the disc. Such a configuration example will be described with reference to FIGS.

  As described above, a play list is necessary for the reproduction of the content, and the reproduction of the content is performed by selecting the reproduction content according to the index described in the play list. Therefore, even if a content such as a movie is recorded on the disc, if there is no playlist in which the content is set as a playback content, the playback of the content is not executed.

  In the example described below, for example, a disc storing movie content for free is distributed to unspecified users, and then a procedure set in advance between the information processing apparatus and the server on which the disc is mounted is executed. Provide a pre-list with playback specification information of content stored on the disc from the server, store it in the local storage unit of the information processing device on the user side, and play back the content stored on the disc using the playlist This is a possible configuration.

  The procedure executed between the information processing device and the server is various procedures such as user registration processing by providing user information, billing processing, or authentication processing, which can be freely set by the server providing the content. It is.

  Referring to FIG. 24, an information processing apparatus equipped with disc 100 on which main content (MovieTitle # 1) 501 such as a movie is recorded and a play list for use in reproducing main content (MovieTitle # 1) 501 is not recorded. A processing example in which 150 acquires a playlist # 1 (PlayList file # 1) 511 that is used by the server 191 to reproduce the main content (MovieTitle # 1) 501 will be described.

  First, in step S401, the content management application (BD-J app # 1) recorded on the disc 100 is activated via the input unit (UI) of the information processing apparatus 150 on which the disc 100 is mounted. This process corresponds to the activation process of the content management application (BD-J1) 321 described above with reference to FIG. That is, the content management application (BD-J app # 1) recorded on the disc 100 is activated by the same process as the title designation executed during the movie playback process.

  By executing the content management application (BD-J app # 1) by the information processing apparatus 150, the information processing apparatus 150 starts from the disk 100 with a serial number corresponding to a disk recording identifier such as a content ID, a volume ID, and a media ID in step S402. Is transmitted to a server 191 that performs playlist provision processing. The sending information to the server 191 only needs to be able to tell the server which content is stored on the server. The content ID, the volume ID, the PMSN which is a serial number corresponding to the media ID, these Any data or other data that can identify the disc may be used. Moreover, it is good also as a setting which sends user ID, information processing apparatus ID, etc. These settings are defined in the content management application (BD-J app # 1).

  When the server 191 receives the download request from the information processing apparatus 150, the server 191 executes an authentication process with the information processing apparatus 150 in step S403. In this authentication process, for example, the server 191 can freely determine whether the disc 100 attached to the information processing device 150 is a genuine disc or whether the information processing device 150 is a device that is allowed to reproduce AACS-specified content. This is performed according to the authentication conditions set in.

  The information processing apparatus 150 transmits identification data indicating the validity of the disk or the validity of the information processing apparatus to the server 191, and the server 191 performs an authentication process to which the identification data is applied. On the condition that the validity of the processing device is confirmed, the information processing device 150 can receive a playlist to be used for the reproduction processing of the disc recorded content.

The server 191 performs authentication using a disk-compatible ID such as PMSN, which is a serial number corresponding to the media ID, for example, on the disk identification information received from the information processing apparatus 150 on the condition that the authentication is successful. Based on this, a playlist corresponding to the identification information is acquired from the database and transmitted to the information processing apparatus 150. In this case, the transmission data is
(A) Play list file (PlayList file # 1) 511,
(B) Binding file 512,
These are the two data.

  The playlist file (PlayList file # 1) 511 is a playlist including main content (Movie Title # 1) 501 stored on the disc 100 as playback content.

The information processing apparatus 150 receives these data from the server 191 and stores them in the local storage unit 155 in step S404. By this processing, the local storage unit 155 stores the following data, that is,
(A) Play list file (PlayList file # 1) 511,
(B) Binding file 512,
These data are recorded.

  In the state after the data recording, when the reproduction is performed by selecting the playlist file (PlayList file # 1) 511 as the reproduction playlist, the main content (Movie Title # 1) 501 is reproduced.

  As described above, in this processing example, the main content (Movie Title # 1) 501 stored in the disc 100 cannot be played until the authentication is successful and the playlist is received from the server 191. In this way, by setting the playlist to be provided to a specific user who has permitted reproduction, the content storage disc can be freely distributed to an unspecified number.

  In addition, a user who is interested in reproducing the content stored on the disc accesses the server, and the server can collect user information efficiently by collecting information on the accessed user, for example. As a result, the server 191 can collect user information interested in specific content, and can perform processing such as analyzing user preference information and providing a new service to the user. The acquisition and management processing of user preference information and the like will be described in more detail later.

  In the above-described example, an example has been described in which a playlist corresponding to stored content on a disc on which no playlist is recorded is provided from the server. However, among the content stored on the disc, only certain limited content is provided. The playlist may be provided by storing the playlist on the disc and provided from the server, and the playback order may be different from that of the playlist stored on the disc. It is good also as a structure which provides the play list which it has from a server.

  In this way, the playlist corresponding to the contents stored on the disc is distributed from the server. For example, the disc is distributed to a large number of unspecified users, and the playlist is transmitted from the server only to clients that have executed a predetermined procedure. It is possible to distribute and set various playable contents according to the user by configuring a playlist with different playback contents and selecting a playlist with low dexterity according to the user. It becomes.

  In addition, the playlist file provided by downloading can be protected from unauthorized distribution of playlists, for example, by protecting the playlist file with an electronic signature using a private key of the server. In other words, an electronic signature using the server's private key is added to the playlist file provided by downloading and provided to the information processing device on the user side, and the electronic signature is verified with the public key of the server provided to the user side As a setting for using the playlist only when it is confirmed that the playlist is a legitimate playlist that has not been tampered with, it is possible to prevent the distribution of unauthorized playlists.

  In addition, the server 191 uses the content ID, the volume ID, and the PMSN that is a serial number corresponding to the media ID received from the information processing apparatus 150 to count the number of downloads for each disk, and It is also possible to limit. In addition, illegal disk discovery is also possible through pirated board check processing.

  In the authentication process, an ID corresponding to the information processing device 150, for example, a hardware ID unique to the information processing device 150 or a random number generated by the information processing device is received as an ID corresponding to the information processing device 150, and server management is performed. It may be configured to register as data, manage the number of downloads in units of information processing devices, and limit the number of downloads. If the user ID is set to be transmitted, management by the user ID is also possible.

  The playlist download processing sequence described with reference to FIG. 24 will be described with reference to the flowchart shown in FIG. In step S421, the user activates the content management application (BD-J app) recorded on the disc 100 via the input unit (UI) of the information processing apparatus 150 on which the disc 100 is mounted.

  Next, in step S422, the content management application (BD-J app) acquires from the disc 100 at least one of disc-compatible identifiers, for example, PMSN, which is a serial number corresponding to the content ID, volume ID, and media ID. In step S423, the obtained disc-compatible identifier is transmitted to the server that performs the playlist providing process.

  Note that, as described above, the sending information to the server only needs to be able to tell the server which content is stored, and the PMSN which is a serial number corresponding to the content ID, volume ID, and media ID. Any of these data or other data that can identify the disc may be used.

  The processes in the next steps S424 and S425 are server-side processes. In step S424, the server executes an authentication process using the disc-compatible identifier received from the information processing apparatus, and determines whether the disc is a genuine disc, for example. As described above, this authentication process can be performed freely by the server, such as whether the disc loaded in the information processing device is a genuine disc or whether the information processing device is a device that is allowed to reproduce AACS-specified content. This is performed according to the set authentication conditions.

If this authentication fails, the process ends without sending the playlist. If the authentication is successful, the process proceeds to step S425, and the server acquires a playlist corresponding to the identification information from the database based on the disc identification information received from the information processing apparatus and transmits the playlist to the information processing apparatus. In this case, the transmission data is
(A) Play list file (PlayList file),
(B) Bind file (Binding file),
These two pieces of data, a playlist file (PlayList file), are playlists including main content (Movie Title) stored on the disc as playback content.

  In step S426, the information processing apparatus receives these data from the server and stores them in the local storage unit. By this process, a playlist file (PlayList file) and a bind file (Binding file) are recorded in the local storage unit. In the state after the data recording, when the downloaded playlist file (PlayList file) is selected as a playback playlist, the main content (Movie Title) recorded on the disc is played back.

[7. User management processing on the server]
A server as a content providing apparatus that provides content to the client (information processing apparatus 150) receives a content download request from the client (information processing apparatus 150), and receives content, such as a movie, from the client. Main contents, CM contents, application programs, playlists, usage control information, and the like. In this processing, the server receives identification information recorded on the disc from the client (information processing apparatus 150). Hereinafter, a configuration example in which user management is performed based on data received from a client (information processing apparatus 150) during content provision processing in the server will be described.

  FIG. 26 is a diagram for explaining processing in which the information processing apparatus 150 loaded with the disc 100 accesses the server 191 to perform content download processing. In step S501, an application (BD- J app # 1) is started and executed.

In step S502, the execution of the application (BD-J app # 1) obtains at least one disc recording ID such as a content ID, a volume ID, and a PMSN that is a serial number corresponding to the media ID recorded on the disc 100. These pieces of information are transmitted to the server 191. In this processing example, data to be transmitted to the server 191 when a content download request is made,
(A) at least one disc recording ID such as a content ID, a volume ID, a PMSN which is a serial number corresponding to a media ID,
(B) an identifier (information processing device ID) of the information processing device 150;
(C) a user identifier (user ID),
(D) user information,
Any of the above information (a) to (d), or a combination thereof. What data is requested can be arbitrarily set by the administrator of the server 191, and an application (BD-J app # 1) for executing processing according to the setting may be recorded on the disk 100.

  The server 191 receives at least one of the above-described information (a) to (d) from the information processing device 150, performs authentication processing if necessary, and then transmits the content to the information processing device 150. In step S <b> 503, the information processing apparatus 150 stores the content received from the server 191 in the local storage unit 155.

The server 191 receives data received from the information processing apparatus in the content download process, for example, the following data (a) to (d) described above,
(A) at least one disc recording ID such as a content ID, a volume ID, a PMSN which is a serial number corresponding to a media ID,
(B) an identifier (information processing device ID) of the information processing device 150;
(C) a user identifier (user ID),
(D) user information,
User management is performed based on the information (a) to (d).

  A specific example of user management will be described with reference to FIG. FIG. 27 shows an example of a management database directory held by the server 191. In the management database of the server 191, for example, as shown in FIG. 27, a directory for a service unit (service ID) provided by the server 191 is set. However, this example is an example, and various settings such as a content unit and a user unit are possible.

  In the example shown in FIG. 27, a directory for each user receiving the service (User ID #m to #n) is set in the directory of the service ID # 1, and information for each user is recorded.

  For example, purchase disk information of the user m as shown in the figure is recorded as user management information of the user m (UserID # m). As shown in the table on the right side of FIG. 27, the disk ID is recorded corresponding to the index. The disk ID is data received from the information processing apparatus 150 when a content download request is made to the server 191. That is, it is confirmed that the user m (UserID # m) has these disks.

  The information processing apparatus 150 is set to transmit the ID acquired from the disc mounted on the information processing apparatus 150 to the server 191 when a content download request is made. At this time, the server 191 also transmits the user ID together By doing so, it becomes possible to generate and update the user management information as shown in FIG.

  As described above, for example, the server holds a disc identifier for each user ID, and can be set to count the number of purchased discs of the user and change the content distributed to the user according to the count. . For example, processing such as providing service content to a certain number of disc purchase users is possible. Furthermore, if the personal information of the user is sent at the time of download execution and the user personal information is set to be managed by the server 191, processing such as changing the distribution content according to the personal information of the user can be performed.

  If the setting is made to allow the user to input information such as address, name, gender, age, hobby, etc. and send it when sending a content download request, or the setting to send the identification information of the information processing device, the server 191 can receive and manage more detailed information. For example, user management information including personal user information and device information as shown in FIG. 28 can be generated and updated. The data shown in FIG. 28 is management data in which user information for purchasing a disc storing specific content is collected. Note that the user information, the device ID, and the like may be set to be transmitted only once at the time of the first content download processing, for example.

  Thus, for example, the server counts the number of purchased disks of the user or the number of used disks for each information processing apparatus as a configuration for holding a disk identifier for each user ID or information processing apparatus ID, and responds to the count. This makes it possible to change the content to be distributed to the user. For example, processing such as providing service contents to a certain number of disc purchase users is possible. Furthermore, it is possible to perform processing such as changing distribution contents according to the personal information of the user.

  The server 191 can analyze the fields of interest of the user by acquiring information on the user and the device in addition to the used disk information in this way. For example, the server 191 can transmit a message to the user or send commercial data. It can be used for selective provision.

  Next, referring to FIG. 29 and FIG. 30, the server notifies the server that the content stored on the disc has actually been reproduced, and the server analyzes the notification information and selects the content to be provided to the user. An example will be described.

The disc 100 shown in FIG.
(A1) Commercial content (CM # 1),
(A2) Main content # 1 (Movie Title # 1),
(A3) Application program (BD-J # 1),
With these content sets,
(B1) Commercial content (CM # 2),
(B2) Main content # 2 (Movie Title # 2),
(B3) Application program (BD-J # 2),
These content sets are recorded. The disc 100 stores a playlist that is used for reproducing these contents, although not shown.

For example, playlist # 1
(A1) Commercial content (CM # 1),
(A2) Main content # 1 (Movie Title # 1),
(A3) Application program (BD-J # 1),
These contents are set to be reproduced in the order of (a1), (a2), (a3), and playlist # 2 is
(B1) Commercial content (CM # 2),
(B2) Main content # 2 (Movie Title # 2),
(B3) Application program (BD-J # 2),
These contents are set to be reproduced in the order of (b1), (b2), and (b3).

here,
(A3) The application program (BD-J # 1)
Executed in the data processing unit of the information processing apparatus 150,
(A1) Commercial content (CM # 1),
(A2) Main content # 1 (Movie Title # 1),
This is a program for executing processing for notifying the server 191 that the reproduction of these contents has been executed. In this notification process, the server 191 is also notified of at least one disk recording ID such as an ID set corresponding to the disk, for example, a content number, a volume ID, or a PMSN that is a serial number corresponding to a media ID. To do.

Similarly,
(B3) Application program (BD-J # 2),
This program is executed in the data processing unit of the information processing apparatus 150, and in the information processing apparatus (b1) commercial content (CM # 2),
(B2) Main content # 2 (Movie Title # 2),
It is set as a program for executing processing for notifying the server 191 that the reproduction of these contents has been executed.

  With such a reproduction information notification configuration, the server 191 can confirm the content actually reproduced in the information processing apparatus 150. A processing example using such reproduction information will be described with reference to FIG.

  In FIG. 30, the server 191 confirms the content reproduced in the information processing apparatus 150 used by the user, determines the user's preference based on the reproduced content information, and determines the commercial content to be provided to the user from the server 191. It is a figure which shows the process example provided.

The disc 100 shown in FIG.
(A1) Main content # 1 (Movie Title # 1),
(A2) Application program (BD-J # 1),
With these content sets,
(B1) Main content # 2 (Movie Title # 2),
(B2) Application program (BD-J # 2),
With these content sets,
A play list (not shown) is stored.

Playlist # 1 is
(A1) Main content # 1 (Movie Title # 1),
(A2) Application program (BD-J # 1),
These contents are set to be reproduced in the order of (a1) and (a2), and playlist # 2 is
(B1) Main content # 2 (Movie Title # 2),
(B2) Application program (BD-J # 2),
These contents are set to be reproduced in the order of (b1) and (b2).

here,
(A2) The application program (BD-J # 1)
(A1) Playback of main content # 1 (Movie Title # 1) has been executed,
(B2) The application program (BD-J # 2)
(B1) A program for executing a process of notifying the server 191 that the reproduction of the main content # 2 (Movie Title # 2) has been executed is included.

First, in step S541, a user who uses the information processing apparatus 150
(A1) Main content # 1 (Movie Title # 1),
(A2) Application program (BD-J # 1),
(B1) Main content # 2 (Movie Title # 2),
(B2) Application program (BD-J # 2),
When these contents are reproduced using the corresponding playlist, the reproduction fact is notified to the server 191 by executing each application program in step S542. In this notification processing, information such as an ID set corresponding to a disc, for example, a content ID, a volume ID, a PMSN that is a serial number corresponding to a media ID, information requested by the server 191, for example, an information processing apparatus 150 identification information, user ID, user information, etc. are notified. These settings are
(A2) Application program (BD-J # 1),
(B2) Application program (BD-J # 2),
It can be changed freely by program setting.

  The server receives these pieces of information and records them in the user preference information management database 631. This database is, for example, a database in which user management information described with reference to FIGS. 27 and 28 is recorded.

Next, in step S543, the user of the information processing apparatus 150 activates and executes an application (BD-J app # 1) as an execution program for download processing. In step S544, transmission request data set in advance in the program by executing the application (BD-J app # 1), for example,
(A) at least one disc recording ID such as a content ID, a volume ID, a PMSN which is a serial number corresponding to a media ID,
(B) an identifier (information processing device ID) of the information processing device 150;
(C) a user identifier (user ID),
(D) user information,
Any one of the above information (a) to (d) or the combination data thereof is transmitted to the server 191.

  When the server 191 receives the content download request from the information processing apparatus 150, the server 191 executes a search for recorded information in the user preference information management database 631 based on various types of identification information included in the received data, and performs the download request. The user's preference is determined by confirming the data previously received from. The server 191 selects CM content (CM # 1) 641 which is commercial content adapted to the determined user preference, selects this as download content, and provides it to the information processing apparatus 150. Note that a bind file (Binding file) 642 and, if necessary, a playlist are also transmitted. The information processing apparatus 150 stores these received contents in the local storage unit 155 in step S545.

  Through such processing, the server can analyze the user's preference and provide content such as commercial content according to the user's preference. For example, when the user viewing content is a movie content related to a car, a car-related commercial is provided, and when the user viewing content is a Korean movie content, For example, providing commercials for Korean products.

  In the above processing example, the configuration example in which the user's preference is determined and the commercial content adapted to the user preference is provided has been described, but the provided content is not limited to the commercial. For example, it may be configured to perform processing for selecting main content such as movie content according to user preferences and recommending it to the user, or configured to perform processing for providing content of a game program that suits the user's interest.

  As described above, a server as a content providing apparatus that provides content to a client includes a data processing unit that executes a content providing process in response to a content request from the client (information processing apparatus 150). Receives from the client the identification information of at least one of the disc recording identifier for identifying the disc or content recorded on the mounted disc of the client, the device identifier of the client side device or the user identifier of the client side user, and receives from the client The disc record identifier history information is stored in the management database in units of devices or in units of users, and based on the stored information in the management database, the client-side user's preference is analyzed to provide content adapted to the user preference. . Alternatively, the personal information may be received from the client, the personal information may be stored in a management database, and the provided content may be selected using the personal information.

  Note that the data processing unit of the server 191 provides the above-described binding file (Binding file) to the client together with the content. That is, the data processing unit of the server 191 stores the disk recording content recorded on the mounting disk of the client (information processing apparatus 150) and the local storage unit provided to the client by the content providing apparatus and stored in the local storage unit of the client. A bind file (Binding file) including content mapping information is provided to the client. As described above, the mapping information includes information for acquiring and reproducing the content stored in the local storage unit as the reproduction content based on the disc recording content information recorded in the playlist when the content is reproduced in the client.

  For example, the server 191 provides the client with commercial content adapted to user preferences and mapping information for reproducing the commercial content in place of the disc recorded commercial content recorded on the disc on the client (information processing apparatus 150) side. Process.

[8. Creation and management of disc storage content and download content]
Next, with reference to FIG. 31 to FIG. 33, details of generation and management of disc storage content and download content, and content provision processing for the client (information processing apparatus 150) will be described. These processing configurations are different depending on the type of content. Hereinafter, processing examples corresponding to the following content types will be described with reference to FIGS.
(1) When downloaded content is encrypted content (FIG. 31)
(2) When the downloaded content is unencrypted content (FIG. 32)
(3) When download content is program content (FIG. 33)

(1) When Downloaded Content is Encrypted Content First, a processing example when the downloaded content is encrypted content will be described with reference to FIG.

In FIG.
(A) a content editing facility 710 that executes content editing processing;
(B) a disk manufacturing facility 720 which is a disk manufacturing unit for manufacturing disks;
(C) a server 730 that executes content providing processing for the client (information processing apparatus 150);
These configurations and processes are shown. Note that the server 730 corresponds to the server 191 that executes the content and bind file provision processing in the above description.

  First, the content editing facility 710 performs content editing processing to generate main content 711 for storing a disc and sub-content 712 for download. These contents include a playlist applied to the above-described content reproduction and a bind file. The generated content is provided to the disc manufacturing facility 720. Note that content attribute information 713 such as a content ID is also provided during this providing process.

  Upon receiving the disc storage main content 711 and the download sub-content 712 generated by the content editing facility 710, the disc manufacturing facility 720 executes encryption processing of these contents in step S801. The key applied to the encryption process is the CPS unit key 721 described above. Note that playlists, bind files, and other data may or may not be encrypted.

  The encrypted main content 722 to be recorded on the disc and the encrypted sub-content 723 for download are generated by the encryption process to which the CPU unit key 721 is applied. When one content is divided into a plurality of units, encryption processing is performed by applying different CPS unit keys for each unit. The main content and the sub-content may be set to perform encryption using different CPS unit keys.

The encrypted main content 722 is recorded in a stamper. The stamper is a master for manufacturing a disc. The example shown in the figure shows an example in which two masters: stamper 1 725 and stamper 2 726 are generated. An identifier, that is, a volume ID is set for each stamper.
Volume ID # 1 for stamper 1,725,
Volume ID # 2 for stamper 2,726
Are set respectively.

Disks to be provided to users are manufactured using these stampers.
Disk set # 1,727 is generated based on the stamper 1,725,
Disk set # 2, 728 is generated based on stamper 2,726,
These discs are provided to the user. Note that the same main content is recorded on these discs. However, the disks have different volume IDs.

  Although not shown in the figure, as described above with reference to FIG. 1, in addition to the content, the disc has various contents such as a CPS unit key file, an MKB, and usage control information (Usage Rule). Data is recorded.

  In step S802, the disc manufacturing facility 720 executes the encryption processing of the CPS unit key 721 applied to the content encryption processing to generate a CPS unit key file. The CPS unit key is encrypted using a volume ID as identification information corresponding to each stamper or a value derived from the volume ID.

The disc manufacturing facility 720
(A) encrypted sub-content 723 encrypted by applying a CPS unit key;
(B) Volume ID # 1, Volume ID # 2 as identification information of stamper 1,725 and stamper 2,726,
(C) CPS unit key file # 1 generated by encrypting the CPS unit key using volume ID # 1 and volume ID # 2, CPS unit key file # 2,
Each of these data is provided to a server 730 that executes a process of providing download content to the user.

Server 730 receives the data received from disk manufacturing facility 720,
Volume ID # 1,733,
Volume ID # 2,734,
CPS unit key file # 1,735,
CPS unit key file # 2,736,
Encrypted sub-content 737,
Keep these data, and
BD-J applications # 2, 731 as application programs used in the content download process
BD-J application # 3,732,
Have these programs.
As described above, the BD-J application # 2, 731 and the BD-J application # 3, 732 are application programs that execute the following processes, for example.

BD-J app # 2
(A) Processing for letting the user select a product (download data) (b) Processing for transmitting the product selected by the user to the server (c) Billing processing (optional)
These processes are executed.

BD-J app # 3
It is executed when the download data is recorded in the local storage unit, and the following processing is executed.
(A) The contents stored in the disc and the contents stored in the local storage unit are set in a state where they can be used in a virtual file system (VFS) that is set as one virtual media storage content, and AV-related files (contents to be played) are stored locally. Processing to record in the department,
(B) A process for recording an AACS related file (management information) in the local storage unit in a state where it can be used in the VFS;
It is an application program for executing these processes.

  When the server 730 receives a content download request from a user information processing apparatus (not shown), the server 730 executes download content provision processing. This process corresponds to the process described above with reference to FIG. That is, in step S821, the server 730 generates an allowable process list that is a list of processes allowed for the user (information processing apparatus) based on the content ID and user ID included in the download request data from the information processing apparatus. The content management application (BD-J application 2) 731 is selected and provided to the information processing apparatus. The information processing apparatus displays a permissible processing list on the display unit of the information processing apparatus through processing using the content management application (BD-J application 2) 731 received from the server 730, and the user selects download contents. The selection information is transmitted to the server, and if necessary, settlement processing is executed. The settlement screen is displayed on the display unit of the information processing apparatus, and the user inputs and transmits data necessary for settlement such as a credit card number on the settlement screen. After the end of the series of processes, in step S822, the server 730 permits the download process, selects data such as content to be downloaded, and transmits the selection information to the information processing apparatus.

  Note that the information processing apparatus that has made a download request to the server 730 transmits the volume ID acquired from the mounted disk to the server, so that the server 730 uses the CPS unit key file based on the received volume ID. Is provided to the information processing apparatus. That is, even if the same title title is stored in the disc, if the volume ID is different, the CPS unit key file to be applied is different. Therefore, when the CPS unit key file is distributed, selection according to the volume ID is performed.

The server 730 receives an identifier for identifying the disc or the recorded content of the disc from the client (information processing apparatus 150) loaded with the disc manufactured by the disc manufacturing facility 720, which is the disc manufacturing unit.
(A) server distribution content,
(B) a bind file (Binding file) having mapping information between the disc recording content and the server distribution content;
Each data of (a) and (b) is transmitted to the client (information processing apparatus 150), and the client first explains the content reproduction using the playlist in which the disc recording content information is recorded as the reproduction content information. By the content acquisition processing using the mapping information, the server distribution content can be reproduced in place of or in addition to the disc recording content specified by the playlist.

  In the example shown in FIG. 31, the disc manufacturing facility 720, which is a disc manufacturing unit, encrypts the content stored on the disc using an encryption key (CPS unit key 721), and an identifier corresponding to a disc set composed of a plurality of discs. And a key file (CPS unit key file) containing data obtained by encrypting the encryption key (CPS unit key 721) with the volume ID or a value derived from the volume ID. The server 730 determines the volume ID corresponding to the disk mounted on the client based on the disk recording identifier received from the client (information processing apparatus 150), and is the same as the determined volume ID. Volume ID or It performs a process of providing the client to select a key file including the encrypted data (CPS unit key Fairu) by a value derived from the volume ID.

(2) When Downloaded Content is Unencrypted Content Next, an example of processing when the downloaded content is unencrypted content will be described with reference to FIG. For example, commercial content is often downloaded as non-encrypted content, and the example shown in FIG. 32 is an example in which the content editing entity 710 uses disc storage content and sub-content as non-encrypted content such as commercial content. .

32 is similar to FIG.
(A) a content editing facility 710 that executes content editing processing;
(B) a disk manufacturing facility 720 that performs disk manufacturing;
(C) a server 730 that executes content download processing;
These configurations and processes are shown.

  First, the content editing facility 710 performs content editing processing, and generates content 714 for storing a disk and sub-content 715 for download. These contents include a playlist applied to the above-described content reproduction and a bind file. The generated content is provided to the disc manufacturing facility 720. Note that content attribute information 716 such as a content ID is also provided during this providing process.

The disc manufacturing facility 720 records the non-encrypted content 741 that is the disc storage content generated by the content editing facility 710 in the stamper.
Volume ID # 1 for stamper 1,725,
Volume ID # 2 for stamper 2,726
The subsequent disk manufacturing process is the same as the process described with reference to FIG.

The disc manufacturing facility 720
(A) Unencrypted sub-content 742,
Is provided to the server 730 that executes the process of providing the download content to the user.

Server 730 receives the data received from disk manufacturing facility 720,
Holds unencrypted sub-content 751, and
BD-J applications # 2, 731 as application programs used in the content download process
BD-J application # 3,732,
Have these programs.
When the server 730 receives a content download request from a user information processing apparatus (not shown), the server 730 executes download content provision processing. This process is basically the same as the process described with reference to FIG. However, since the download content is the non-encrypted content 751, the provision process of the CPS unit key file becomes unnecessary.

  In the example shown in FIG. 32, the disc manufacturing facility 720 as the disc manufacturing unit records the non-encrypted content on the disc as the disc storage content, and the server 730 plays back the non-encrypted content included as the disc storage content. It is an example of a process in the case of performing the process which provides the server (information processing apparatus 150) with the server delivery content as alternative unencrypted content to be performed. For example, the non-encrypted content recorded on the disc is commercial content, and the non-encrypted content provided to the client by the server 730 is the second commercial content that is reproduced in place of the commercial content recorded on the disc.

(3) Case where Download Content is Program Content Next, an example of processing when the download content is program content will be described with reference to FIG. For example, an application program (BD-J application) for executing content reproduction processing can be provided to the user time usage processing device via the server. For example, when content stored on a disc needs to be played back in a special playback sequence, a dedicated program for playing back the content stored on the disc may be required. An application program (BD-J application) applied to such reproduction is also generated in the content editing facility 710 as one of the contents.

FIG. 33 is similar to FIG. 31 and FIG.
(A) a content editing facility 710 that executes content editing processing;
(B) a disk manufacturing facility 720 that performs disk manufacturing;
(C) a server 730 that executes content download processing;
These configurations and processes are shown.

  First, the content editing facility 710 performs content editing processing to generate main content 717 for storing a disc and sub-content 718 for download. The download sub-content 718 is a program content applied to the reproduction process of the main content 717 for storing the disc. The generated content is provided to the disc manufacturing facility 720. Note that content attribute information 719 such as a content ID is also provided during this providing process.

The disc manufacturing facility 720 records the non-encrypted content 743, which is the disc storage content generated by the content editing facility 710, in the stamper.
Volume ID # 1 for stamper 1,725,
Volume ID # 2 for stamper 2,726
The subsequent disk manufacturing process is the same as the process described with reference to FIG.

  The content editing facility 710 directly provides the download sub-content 718, which is a program content applied to the reproduction processing of the main content 717 for storing the disc, to the server 730 that executes the processing for providing the download content to the user.

  Since the disc manufacturing facility 720 does not particularly perform processing for the sub-content, the content editing facility 710 provides the sub-content 718 to the server 730 without going through the disc manufacturing facility 720. However, it may be configured to be provided to the server 730 via the disk manufacturing facility 720.

Server 730 receives data received from content editing facility 710,
Holds sub-content 771, and
BD-J applications # 2, 731 as application programs used in the content download process
BD-J application # 3,732,
Have these programs.
Upon receiving a content download request from a client (information processing apparatus 150) (not shown), the server 730 executes download content provision processing. This process is basically the same as the process described with reference to FIG. However, since the downloaded content is non-encrypted content, the provision processing of the CPS unit key file is not necessary. The server 730 provides the program content to be applied to the reproduction processing of the disk storage content to the client (information processing apparatus 150) as server distribution content.

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present invention. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

  The series of processing described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run. For example, the program can be recorded in advance on a recording medium. In addition to being installed on a computer from a recording medium, the program can be received via a network such as a LAN (Local Area Network) or the Internet, and installed on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

  As described above, according to the configuration of the embodiment of the present invention, the information processing apparatus that performs content reproduction using the playlist in which the content reproduction order information is recorded is the disc or content recorded on the disc. Since the identifier for identifying the server is transmitted to the server, the playlist is received from the server and stored in the local storage unit, and the playback process of the disc recorded content is executed using the playlist stored in the local storage unit. For example, it is possible to distribute a disc to a large number of unspecified users, distribute a playlist from the server only to clients that have executed a predetermined procedure, and allow playback of the content stored on the disc, and various reproductions according to the user Possible content can be easily set.

It is a figure explaining the storage data structure of an information recording medium, and the structure and process of the information processing apparatus which performs a reproduction | regeneration process. It is a figure explaining the example of a setting of the content management unit set with respect to the storage content of an information recording medium. It is a figure explaining the structure of a CPS unit key file. It is a syntax diagram explaining the structure of a CPS unit key file. It is a figure explaining the content reproduction | regeneration processing sequence in information processing apparatus. It is a figure explaining the content download process in information processing apparatus. It is a figure explaining the content acquisition process sequence in which an information processing apparatus acquires a content from a server. It is a figure which shows the flowchart explaining the content download processing sequence from a server. It is a figure which shows the flowchart explaining the content reproduction | regeneration sequence using a disc storage content and a local memory | storage part storage content in information processing apparatus. It is a figure explaining the specific example of a bind file (Binding file). It is a figure explaining the example of content reproduction | regeneration processing which does not use a bind file (Binding file). It is a figure explaining the example of a content reproduction | regeneration process using a bind file (Binding file). It is a figure which shows the flowchart explaining the construction sequence of a virtual file system (VFS). It is a figure explaining the process which reproduces commercial (CM) content automatically. It is a figure which shows the flowchart explaining the process sequence which downloads the newest content from a server automatically. It is a figure which shows the flowchart explaining the automatic reproduction | regeneration processing sequence of a content. It is a figure explaining the download process example of commercial content. It is a figure explaining the download process example of a program content. It is a figure explaining the example of a download process of main contents, such as AV stream which is a movie content, for example. It is a figure explaining the example of the playlist file which a server transmits. It is a figure explaining the download process example of usage control information (Usage Rule). It is a figure explaining the usage control information (Usage Rule) corresponding to main contents (Movie Title), such as a movie. It is a figure explaining the example of the usage control information (Usage Rule) corresponding to commercial content. It is a figure explaining the example of a process which information processing apparatus acquires playlist # 1 (PlayList file # 1) used for reproduction of main contents (MovieTitle # 1) from a server. It is a figure which shows the flowchart explaining the sequence of the download process of a play list. It is a figure explaining the process in which the information processing apparatus which mounted | wore the disk accesses a server and performs a content download process. It is a figure explaining the specific example of the user management by a server. It is a figure explaining the specific example of the user management by a server. It is a figure explaining the process example which notifies a server that the user reproduced | regenerated the disc storage content and a server analyzes notification information and selects a provision content. It is a figure explaining the process example which notifies a server that the user reproduced | regenerated the disc storage content and a server analyzes notification information and selects a provision content. It is a figure explaining the detail of the production | generation of the disk storage content in case a download content is an encryption content, and the content for download, management, and a provision process with respect to a user. It is a figure explaining the detail of the production | generation of the disc storage content and download content in case a download content is a non-encrypted content, management, and a provision process with respect to a user. It is a figure explaining the detail of the production | generation of a disk storage content and download content in case a download content is a program content, management, and a provision process with respect to a user.

Explanation of symbols

100 Information recording medium (disc)
111 Encrypted content 112 MKB
113 Process Management File 114 Usage Control Information 115 CPS Unit Key File 120 Drive 150 Information Processing Device 151 Data Processing Unit 152 Decoding Processing Unit 153 Decoding Processing Unit 154 Memory 155 Local Storage Unit 156 Communication IF
157 Display unit 191 192 Server 210 Index 220 Movie object 230 Playlist 240 Clip 261 262 263 AV stream 271 272 Content management unit (CPS unit)
281 Device key 282 Content 301 Content management application 302 Processing management file 321 to 323 Content management application 330 Payment data 331 and 332 Content management application 333 Management data 334 Content 335 Binding file (Binding file)
341 Management data 342 Contents 343 Bind file (Binding file)
350 Commercial content 351 Bind file (Binding file)
352 Commercial content 401 Commercial content 402 Playlist 403 Binding file (Binding file)
411 playlist 421 BD-J app # 2 (BD-J app # 2)
422 Binding file
431 BD-J app # 2 (BD-J app # 2) difference 441 BD-J app # 2 (BD-J app # 2)
451 Main content (Movie Title # 3)
452 Playlist 453 Binding file
461 playlist 471 usage control information 472 binding file (Binding file)
481 Usage control information 501 Main content (MovieTitle # 1)
511 Playlist 512 Binding file (Binding file)
611 BD-J app # 2 (BD-J app # 2)
612 BD-J app # 3 (BD-J app # 3)
613 Binding file (Binding file)
621 Viewing information management database 631 User preference information management database 641 CM content (CM # 1)
642 Bind file (Binding file)
710 Content Editing Facility 711 Main Content 712 Sub Content 713 Content Attribute Information 714 Content 715 Sub Content 716 Content Attribute Information 717 Main Content 718 Sub Content 719 Content Attribute Information 720 Disc Manufacturing Facility 721 CPS Unit Key 722 Encrypted Main Content 723 Encrypted Sub Content 725 726 Stamper 727,728 Disk set 730 Server 731 BD-J application # 2
732 BD-J Application # 3
733 Volume ID # 1
734 Volume ID # 2
735 CPS unit key file # 1
736 CPS unit key file # 2
737 Encrypted content 741 Unencrypted content 742 Unencrypted sub-content 743 Unencrypted main content 751 Unencrypted sub-content 771 Sub-content

Claims (7)

An information processing apparatus for executing playback processing of a disc recording content,
A data processing unit for executing content playback using a playlist in which content playback order information is recorded;
The data processing unit transmits an identifier for identifying a disc or content recorded on the disc to the server, receives a playlist from the server, stores the playlist in the local storage unit, and uses the playlist stored in the local storage unit. Disc playback content playback processing,
The playlist is content playback control information having a play item that is playback section defining information of an AV stream including audio and image data that is the disc recording content,
The disc is a playlist in which the disc recorded content is set as a selected playback content by the play item, and is a disc that does not record a disc recorded content compatible playlist that is essential for the playback processing of the disc recorded content.
The data processing unit
Identification data indicating the validity of the disk or the validity of the information processing apparatus is transmitted to the server, and the validity of the disk or the validity of the information processing apparatus is confirmed in the authentication process using the identification data in the server. On the condition that the disc recorded content compatible playlist is received from the server, the disc recorded content reproduction process is executed using the received disc recorded content compatible playlist . The data processing unit
Content and a playlist are received from the server, stored in a local storage unit, and playback of the content stored in the local storage unit is executed using the playlist stored in the local storage unit The information processing apparatus according to claim 1. The data processing unit
From the server, a bind file (Binding file) including mapping information between the disc recorded content and the content stored in the local storage unit is received and stored in the local storage unit,
Using the content recorded on the playlist, the content recorded using the mapping information for acquiring the content stored in the local storage unit as the content to be reproduced as the content to be reproduced is replaced with the content recorded on the disc specified by the playlist. The information processing apparatus according to claim 2 , wherein the content stored in a section is reproduced. An information processing method to be executed in an information processing apparatus that executes a reproduction process of disc recorded content,
A data processing unit transmits an identifier for identifying a disc or content recorded on a disc to a server, receives a playlist from the server, and stores it in a local storage unit;
The data processing unit has a content playback step of executing a playback process of the disc recorded content using the playlist acquired from the server in the playlist acquisition step,
The playlist is content playback control information having a play item that is playback section defining information of an AV stream including audio and image data that is the disc recording content,
The disc is a playlist in which the disc recorded content is set as a selected playback content by the play item, and is a disc that does not record a disc recorded content compatible playlist that is essential for the playback processing of the disc recorded content.
The data processing unit
Identification data indicating the validity of the disk or the validity of the information processing apparatus is transmitted to the server, and the validity of the disk or the validity of the information processing apparatus is confirmed in the authentication process using the identification data in the server. On the condition that the disc recorded content compatible playlist is received from the server, the disc recorded content reproduction process is executed using the received disc recorded content compatible playlist . The information processing method further includes:
The data processing unit receives content and a playlist from the server, stores the content and the playlist in the local storage unit, and plays back the content stored in the local storage unit using the playlist stored in the local storage unit 5. The information processing method according to claim 4 , further comprising the step of: The information processing method further includes:
The data processing unit receives from the server a binding file (Binding file) including mapping information between the disc recorded content and the content stored in the local storage unit, stores the binding file in the local storage unit, and the disc recording recorded in the playlist It has a step of reproducing the content stored in the local storage unit in place of the disc recording content specified by the playlist by the content reproduction process using the mapping information for acquiring the content stored in the local storage unit as the reproduction content by using the content information. The information processing method according to claim 5 . A computer program for executing information processing in an information processing apparatus for executing reproduction processing of disc recorded content,
A playlist acquisition step of sending an identifier for identifying the disc or content recorded on the disc to the data processing unit, receiving the playlist from the server and storing it in the local storage unit;
Causing the data processing unit to execute a content playback step of executing a playback process of the disc recorded content using the playlist acquired from the server in the playlist acquisition step;
The playlist is content playback control information having a play item that is playback section defining information of an AV stream including audio and image data that is the disc recording content,
The disc is a playlist in which the disc recorded content is set as a selected playback content by the play item, and is a disc that does not record a disc recorded content compatible playlist that is essential for the playback processing of the disc recorded content.
The computer program sends identification data indicating the validity of the disk or the validity of the information processing apparatus to the data processing unit to the server, and the authentication of the disk in the authentication process using the identification data in the server. The disc recorded content compatible playlist is received from the server on the condition that the information processing apparatus or the legitimacy of the information processing apparatus is confirmed , and the disc recorded content playback process is performed using the received disc recorded content compatible playlist. A computer program characterized by being executed.

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