Information processing apparatus, information processing system, information recording medium, information processing method, and program

A server comprising:

• processing circuitry;
• a communicating section that executes communication with a user apparatus;
• a database that stores subsequent data to be provided to the user apparatus, wherein the subsequent data corresponds to substance data on a disc;
• and
• a data processing section, implemented by the processing circuitry, that receives a subsequent-data acquisition request from the user apparatus via the communicating section, and transmits subsequent data acquired from the database to the user apparatus, wherein,
• the data processing section performs a process of receiving a package ID as a requested-data identifier contained in the subsequent-data acquisition request from the user apparatus, extracting a file set associated with the package ID from the database, and transmitting the file set to the user apparatus,
• the package ID is information specifying a package, wherein the package contains elements within a complete file set that are necessary for building or updating a virtual file system that is set in the user apparatus to read data stored on a disc and a local storage section, the complete file set including some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including a file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF,
• wherein the virtual file system is built for reading the substance data stored on the disc and the transmitted subsequent data originally stored in the database, by using the file name conversion table to convert file names of the subsequent data into file names on the virtual file system, and combining the substance data from the disc and the transmitted subsequent data into the virtual file system,
• wherein the package ID, transmitted to the server, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is transmitted to the user apparatus, and
• the data processing section performs a process of applying the package ID as information for selecting data to be transmitted to the user apparatus.

An information processing system comprising:

• an information processing apparatus, including processing circuitry, in which a disc is mounted and which performs a playback process of substance data stored on the disc;
• and
• a server, including processing circuitry, that receives a data acquisition request from the information processing apparatus, and performs a provision process of subsequent data to the information processing apparatus, wherein,
• the subsequent data corresponds to the substance data on the disc,
• the information processing apparatus performs a data playback process by building a virtual file system for reading the substance data stored on the disc and subsequent data stored on a local storage section, and performs an acquisition process of the subsequent data by transmitting a package ID to the server at the time of the acquisition process of the subsequent data, the package ID being information specifying a package, wherein the package contains elements within a complete file set that are necessary for building or updating the virtual file system, the complete file set including some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including a file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF,
• wherein the package ID, transmitted to the server at the time of the acquiring process of the subsequent data, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is acquired by the performance of the acquisition process of the subsequent data,
• wherein the virtual file system is built for reading the substance data stored on the disc and the subsequent data stored in the local storage section, by using the file name conversion table to convert file names of the subsequent data into file names on the virtual file system, and combining the data from the disc and the local storage section into the virtual file system, and
• the server receives the package ID contained in a subsequent-data acquisition request from the information processing apparatus, extracts a file set associated with the package ID from a database, and transmits the file set to the information processing apparatus.

A non-transitory computer readable information recording medium recording:

• content to be played back by an information processing apparatus having processing circuitry;
• and
• a program for causing the information processing apparatus to execute an acquisition process of subsequent data from a server, wherein
• the program is a program recording a package ID, and recording a sequence for causing the information processing apparatus to transmit the package ID to the server to execute the acquisition process of subsequent data, at the time of a data playback process in the information processing apparatus, the package ID being information specifying a package,
• wherein the subsequent data corresponds to substance data on a disc,
• wherein the package contains elements within a complete file set that are necessary for building or updating a virtual file system for reading the substance data stored on the information recording medium and the subsequent data stored in a local storage section, by using a file name conversion table to convert file names of the subsequent data into file names in the virtual file system, and combining the data from the disc and the local storage section into the virtual file system,
• wherein the complete file set includes some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including the file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF, and
• wherein the package ID, transmitted to the server at the time of the acquiring process of the subsequent data, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is acquired by the performance of the acquisition process of the subsequent data.

An information processing method which is executed in an information processing apparatus, comprising:

• a subsequent-data acquiring step of a data processing section performing an acquisition process of subsequent data from a server, wherein the subsequent data corresponds to substance data on a disc;
• and
• a data playback step of the data processing section executing a data playback process using the substance data stored on the disc, and subsequent data stored on a local storage section, wherein,
• the data playback step includes executing the data playback process by building a virtual file system for reading the substance data stored on the disc and the subsequent data stored in the local storage section, by using a file name conversion table to convert file names of the subsequent data into file names in the virtual file system, and combining the data from the disc and the local storage section into the virtual file system, and
• the subsequent-data acquiring step includes performing the acquisition process of subsequent data by transmitting a package ID to the server, the package ID being information specifying a package, wherein the package contains elements within a complete file set that are necessary for building or updating the virtual file system, the complete file set including some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including the file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF,
• wherein the package ID, transmitted to the server at the time of the acquiring process of the subsequent data, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is acquired by the performance of the acquisition process of the subsequent data.

An information processing method for a server that executes a provision process of subsequent data to a user apparatus, comprising:

• a subsequent-data providing step of a data processing section receiving a package ID as a requested-data identifier contained in a subsequent-data acquisition request from the user apparatus, extracting a file set associated with the package ID from a database that stores subsequent data to be provided to the user apparatus, wherein the subsequent data corresponds to substance data on a disc, and transmitting the file set to the user apparatus, wherein,
• the package ID is information specifying a package, wherein the package contains elements within a complete file set that are necessary for building or updating a virtual file system that is set in the user apparatus to read data stored on a disc and a local storage section, the complete file set including some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including a file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF,
• wherein the virtual file system is built for reading the substance data stored on the disc and the transmitted subsequent data originally stored in the database, by using the file name conversion table to convert file names of the subsequent data into file names on the virtual file system, and combining the data from the disc and the transmitted subsequent data into the virtual file system,
• wherein the package ID, transmitted to the server, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is transmitted to the user apparatus, and
• the subsequent-data providing step includes performing a process of applying the package ID as information for selecting data to be transmitted to the user apparatus.

A non-transitory computer readable storage medium on which a program is recorded for causing an information processing apparatus to execute information processing, the information processing comprising:

• a subsequent-data acquiring step of a data processing section performing an acquisition process of subsequent data from a server, wherein the subsequent data corresponds to substance data on a disc;
• and
• a data playback step of the data processing section executing a data playback process using the substance data stored on the disc, and subsequent data stored on a local storage section, wherein,
• the data playback step includes executing the data playback process by building a virtual file system for reading the substance data stored on the disc and the subsequent data stored in the local storage section, by using a file name conversion table to convert file names of the subsequent data into file names in the virtual file system, and combining the data from the disc and the local storage section into the virtual file system, and
• the subsequent-data acquiring step includes performing the acquisition process of subsequent data by transmitting a package ID to the server, the package ID being information specifying a package, wherein the package contains elements within a complete file set that are necessary for building or updating the virtual file system, the complete file set including some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including the file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF,
• wherein the package ID, transmitted to the server at the time of the acquiring process of the subsequent data, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is acquired by the performance of the acquisition process of the subsequent data.

A non-transitory computer readable storage medium on which a program is recorded for causing a server to execute a provision process of subsequent data to a user apparatus, the provision process comprising:

• a subsequent-data providing step of a data processing section receiving a package ID as a requested-data identifier contained in a subsequent-data acquisition request from the user apparatus, extracting a file set associated with the package ID from a database that stores subsequent data to be provided to the user apparatus, wherein the subsequent data corresponds to substance data on a disc, and transmitting the file set to the user apparatus,
• wherein,
• the package ID is information specifying a package, wherein the package contains elements within a complete file set that are necessary for building or updating a virtual file system that is set in the user apparatus to read data stored on a disc and a local storage section, the complete file set including some combination of substance data of the subsequent data, a key file corresponding to the substance data, a usage control information file corresponding to the substance data, a binding unit manifest file (BUMF) including a file name conversion table corresponding to the substance data, a signature file for verifying the authenticity of the BUMF,
• wherein the virtual file system is built for reading the substance data stored on the disc and the transmitted subsequent data originally stored in the database, by using the file name conversion table to convert file names of the subsequent data into file names on the virtual file system, and combining the data from the disc and the transmitted subsequent data into the virtual file system,
• wherein the package ID, transmitted to the server, is stored on the disc in correspondence with a reference to the subsequent data, wherein the package ID is stored on the disc without the storage of the subsequent data, which is transmitted to the user apparatus, and
• the subsequent-data providing step includes performing a process of applying the package ID as information for selecting data to be transmitted to the user apparatus.