Abstract: A configuration is achieved in which content copying between media and content downloading are performed effectively and under strict management. In content copying between media, the identification information (medium ID) of a copying destination medium is obtained using an API for providing a predefined processing, then the obtained medium ID is transmitted to a server to obtain copying permission information from the server, and then content copying is performed under the management of the server. This configuration allows a copying destination medium to be managed, which can eliminate the unauthorized use of the content. Also, the configuration in which content downloading from the server is performed according to, for example, a Java® program allows a ROM disc on which the content is recorded to store the program and to be provided to a user.

Abstract: The present invention relates to a data structure, a reproducing apparatus, a reproducing method, and a program which are applicable to various types of display and which facilitates signal processing performed in the displays. In a 3D video format according to the present invention, a base signal BS of a side-by-side image SbSP and an optional signal OS of a sub-image SuP obtained by collectively arranging three images described below regarding an L image LP of the side-by-side image SbSP are used. That is, the sub-image SuP includes a Depth image of the L image, an image hidden behind an object included in the L image, and a Depth image of the mage hidden behind the object. The present invention is applicable to 3D displays.

Abstract: A method and apparatus for processing information, method and apparatus for manufacturing an information recording medium, an information recording medium, and a computer program are provided. An information processing apparatus for playing back a content recorded on an information recording medium and includes a data transform processor performing a substitution process on content member data recorded on the information recording medium. The data transform processor substitutes transform data as substitute data for the content member data in accordance with a fix-up table holding recording position information of the transform data.

Abstract: An information processing device includes: a local memory unit storing data including encrypted content; a memory storing data including key information to be used in a process of reproducing the encrypted content; and a data processing unit selectively reproducing encrypted content stored in a disk or the local memory unit, wherein the data processing unit reads a medium ID from the disk when the content to be reproduced is stored in the disk and reads a medium ID from the memory when the content to be reproduced is stored in the local memory unit.

Abstract: A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Hence, if virtual machine is implemented maliciously, a program operating thereon can be made to operate maliciously instead of operating legitimately. By comparing secret information held in memory and specific to the virtual machine with verification information which a program holds itself, the program verifies that the virtual machine on which it is running has been legitimately implemented and excludes illegitimate virtual machines.

Abstract: An information processing apparatus that obtains pieces of content information relating to content recorded in an information recording medium, the information processing apparatus includes a data analyzing unit configured to read a content certificate which is recorded in the information recording medium and which corresponds to the content recorded in the information recording medium, a data transmitting unit configured to transmit a content certificate identifier analyzed using the data analyzing unit to a content information provision server, a data receiving unit configured to receive, from the content information provision server, the pieces of content information relating to the content which is specified on the bases of the content certification identifier, and a data outputting unit configured to output the pieces of content information received using the data receiving unit.

Abstract: A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Therefore, it is possible that by implementing the virtual machine illegitimately, programs run thereon on will be made to operate illegitimately instead of legitimately. A program compares secret information held by the virtual machine with verification information held by the program itself. The program thereby verifies whether the virtual machine that runs the program is implemented legitimately, and is able to reject an illegitimate virtual machine.

Abstract: A method and apparatus for processing information, method and apparatus for manufacturing an information recording medium, an information recording medium, and a computer program are provided. An information processing apparatus for playing back a content recorded on an information recording medium and includes a data transform processor performing a substitution process on content member data recorded on the information recording medium. The data transform processor substitutes transform data as substitute data for the content member data in accordance with a fix-up table holding recording position information of the transform data.

Abstract: A transmitter which transmits video content via a predetermined network, wherein the video content is encoded while an image group containing a plurality of frame images is handled as a processing unit, the transmitter includes a formation unit and a transmission unit. The formation unit is configured to form invalid-image information for an image group containing at least an edit point of edited video content in order to indicate invalid frame images within the image group in accordance with edit point information about the edited video content. The transmission unit is configured to transmit video content via the predetermined network and, if there is invalid-image information formed by the formation unit, transmit the invalid-image information before transmitting the associated image group.

Abstract: To provide an apparatus, a recording medium and a method for effectively preventing unauthorized use of a content. A content containing broken data different from correct content member data is recorded on an information recording medium. Furthermore, transform data, as the correct member data, to be substituted for the broken data, and a fix-up table storing setting position information of the content are recorded on the information recording medium. During the content playback process, the transform data is substituted for the content member data in accordance with the fix-up table recorded on the information recording medium. With this arrangement, even if the encryption key corresponding to the encrypted content recorded on the information recording medium is leaked, an apparatus unable to acquire the transform data cannot play back the content. Unauthorized use of the content is thus controlled.

Abstract: In an information recording medium storing many pieces of content, a configuration that allows use management on segmented content basis is provided. A plurality of content management units corresponding to title, index and other information are set by partitioning stored content in an information recording medium. Different unit keys that are encryption keys are allocated to different content management units. At least the content real data included in each content management unit is encrypted by use of the unit key and the encrypted data is stored. In content reproduction, units are identified and decryption is executed by use of a unit key corresponding to each unit for reproduction. In an information recording medium storing many pieces of content for example, each of segmented pieces of content may be managed.

Abstract: The present invention provides a configuration for preventing each entity code stored in information recording media from being leaked. Authoring studio code (ASC) and disc manufacturer code (DMC) are encrypted without failure and the encrypted codes are stored in information recording media. The data setting location in program map table (PMT) is controlled such that these entity codes will not overlap the seed area that provides key generating information, so that, if the packet storing the program map table storing authoring studio code (ASC) and disc manufacturer code (DMC) is set to an arbitrary position in a content packet sequence, these entity codes will not overlap the seed area that is non-encrypted data, thereby preventing these entity codes from being leaked outside.

Abstract: A GUID as title information and a global serial number are recorded in a BCA of a digital video disc 60. A hash value of the GUID is embedded as an electronic watermark in a data area 64. When content data is reproduced from the digital video disc 60, a match of information of the two GUIDs is checked so as to prevent the digital video disc 60 from being illegally copied. A lead-in area 63 and a managing organization 20 provide disc revocation lists. With a global serial number and a disc revocation list, content data can be prevented from being reproduced from an illegally distributed disc. A film WM detector 84 detects data embedded in a movie shown in a theater so as to prevent content data from being reproduced from a disc on which the embedded data is recorded. Thus, content data can be prevented from being reproduced from an illegally distributed disc before a copyright supervisor of the content authorizes the disc to be distributed.

Abstract: The present invention provides a configuration capable of effectively preventing an encrypted content stored on an information-recording medium from being misused. In this configuration, a seed (seed 2) required for generating a block key to be applied to a process to decode an encrypted content is stored as information encrypted by using another block key Kb1. In addition, in a configuration where the seed (seed 2) needs to be transferred from a device to another, both the seed (seed 2) and a recording key K2 are transferred from the device to the other as information encrypted by using a session key. In such configurations, it is difficult to analyze the seed (seed 2) by acquisition of data from the information-recording medium or a data transmission line. Thus, difficulties to analyze a key generated by using the seed and analyze an encryption algorithm are increased. As a result, protection of contents at a high level of security can be implemented.

Abstract: A list of video fingerprinting data that represents a feature of the newest video content is extracted from a digital video disc 160 or provided by a copyright supervisor authorized by a managing organization. The list of the video fingerprinting data is recorded in a non-volatile memory 181. When video content is reproduced from the digital video disc 160, a fingerprinting data calculating portion 187 extracts the feature of the video content and obtains video fingerprinting data. When the data is contained in the list, the reproduction for the video content is restricted. Thus, the reproduction for an illegal digital video disc 160 can be restricted until the copyright supervisor permits the reproduction for the digital video disc 160.

Abstract: A system, apparatus and method for prevention of unauthorized manufacture and distribution of information recording media containing content, in which an information recording medium manufacturing entity transmits a key information issue request created based on information recording medium manufacturing request issued by a content rights owner to a key information issue entity, verifies authenticity of the issued request and, depending on the legitimacy acknowledged as a result of such verification, issues a key information for storing the content into the information recording medium. As for content acquired through unauthorized channels, the key information cannot be obtained, thus preventing manufacturing of discs or media containing improperly acquired content.

Abstract: Method and apparatus for reproducing MPEG-compressed video data and compressed audio data from an optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm±0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 ?m and 1.05 ?m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks. The user information is comprised of MPEG-compressed video data, which may exhibit any one of difference MPEG formats, and compressed audio data, which likewise may exhibit an MPEG format, a PCM format or the like.

Abstract: An optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm±0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 &mgr;m and 1.05 &mgr;m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks; with the TOC information including addresses of start sectors recorded in the user tracks. The data (both user and TOC information) is encoded in a long distance error correction code having at least eight parity symbols, and is run length limited (RLL) modulated.

Abstract: An optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm±0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 &mgr;m and 1.05 &mgr;m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks. The user information is comprised of MPEG-compressed video data, which may exhibit any one of difference MPEG formats, and compressed audio data, which likewise may exhibit an MPEG format, a PCM format or the like. The TOC information includes addresses of start sectors recorded in the user tracks and also includes application table of contents (ATOC) information which identifies various parameters for accessing and using the user information.

Abstract: An optical disk having a diameter less than 140 mm and, a thickness of 1.2 mm±0.1 mm, with a plurality of record tracks having data recorded thereon as embossed pits representing information and exhibiting a track pitch in the range between 0.646 &mgr;m and 1.05 &mgr;m; with the tracks being divided into a lead-in area, a program area and a lead-out area. The data includes table of contents (TOC) information recorded in a plurality of sectors in at least one TOC track and user information recorded in a plurality of sectors in user tracks; with the TOC information including addresses of start sectors recorded in the user tracks. The data (both user and TOC information) is encoded in a long distance error correction code having at least eight parity symbols, and is run length limited (RLL) modulated.