Abstract: An information processor includes a data processing portion which generates content for delivery to a client. The data processing portion generates and provides a sub-image in which identification information of a content delivery client is recorded in image data formed only of a partial area of image data and a main image in which the image signal of the sub-image area is deleted or substituted with a dummy signal to the client, generates management information in which the identification information recorded in the sub-image is associated with client information of the content provision destination, and records the management information in a storage portion.

Abstract: A reproducing apparatus and a reproducing method reproduce content data recorded on a recording medium. Video data, audio data reproducible in accordance with the video data, and information that indicates whether the video data and the audio data have been recorded as a multiplexed file or as independent files are read from the recording medium. The read video data and audio data are reproduced in accordance with the read information. When the information indicates that the video data and the audio data have been recorded as a multiplexed file on the recording medium, still pictures derived from the video data are reproduced in synchronization with the audio data. When the information indicates that the video data and the audio data have been recorded as independent files on the recording medium, the still pictures derived from the video data are reproduced without being in synchronization with the audio data.

Abstract: The present invention relates to a reproducing apparatus and a reproducing method, a data structure, a recording medium, a recording apparatus and a recording method, and a program that enable, in a case where offset information of a sub-image is arranged in a stream of a main image, easy realization of 3D display of the sub-image based on the offset information. A right-eye video stream includes offset metadata for generating offset information. In a data portion of each TS packet of the right-eye video stream, only any one of video data of an encoded right-eye main image and offset metadata is arranged. In a header of each TS packet of the right-eye video stream, transport priority, which indicates whether data arranged in the data portion of the TS packet is video data of an encoded right-eye main image or offset metadata, is described. The present invention can be applied to, for example, a reproducing apparatus that displays a sub-image in a 3D manner.

Abstract: The present invention relates to an information processing apparatus, an information processing method, a program, and a data structure for processing a stream including a base stream and extension streams at a plurality of levels. A transmitter encodes an audio stream into a base stream BS and first to n-th extension streams Ext1 to ExtN. The transmitter refers to tables 90 and 91, generates TS packets 92 and 93-1 to 93-n having PIDs for the corresponding types of streams and the TS packets 90 and 91 of the tables, and outputs the generated TS packets to a receiver. The receiver refers to the TS packets 90 and 91 of the tables and determines the type(s) of stream(s) that it can process. The receiver selects the TS packets having the PID(s) associated with the stream(s) that it can process and decodes the TS packets. The present invention is applicable to a transmitter and a receiver that perform encoding and decoding.

Abstract: For a large capacity recording medium, a user interface having high flexibility and enriched representation is accomplished. A flag that represents whether a play item has a multiple angle structure of which the play item is reproduced with a plurality of angles is described. In addition, a flag that represents whether the beginning of each decode unit is an angle switchable point is described. In a seamless multiple angle structure, the current angle can be switched without need to increase the number of interleave units. In a nonseamless multiple angle structure, with the flag, in a predetermined region on the rear end side of each angle, the current angle is prohibited from being switched. Thus, when a play item exits from the multiple angle, discontinuity in the reproduction can be prevented. In addition, with a flag that represents whether a sub play item should be reproduced not in synchronization with a main path, the sub play item of only audio data can be used as a BGM.

Abstract: This invention relates to an information providing system, a reproducing apparatus, a reproducing method, an information providing apparatus, an information providing method, a recording medium, and a program. If an instruction is given to download a Japanese language audio file, update files corresponding to the content recorded on an optical disc 11 are downloaded. After being downloaded as the update files, audio stream files in Japanese are recorded to a local storage 12 along with accompanying clip information files, play list files for controlling reproduction of the audio stream files, and an updated navigation program file. The updated navigation program is used illustratively to reproduce a clip 3 audio stream file in Japanese. This invention applies among others to players to which a recording medium that stores contents is removable.

Abstract: An information processing apparatus includes a data processing unit which executes a copy process for recording data recorded on a first medium onto a second medium, and the data processing unit executes a questionable data discrimination process for discriminating questionable data which is highly likely to be not normally reproduced in a reproduction process in which a reproduction program different from a dedicated reproduction program to the data recorded on the first medium is applied, and executes at least any of processes, which include a questionable data deletion process for deleting the questionable data from a copy target or a warning notification process for notifying a user of a possibility that copied data will not be normally reproduced, according to the discrimination result in the questionable data discrimination process.

Abstract: In an information recording apparatus and method, information reproducing apparatus and method, information recording medium, program storage medium, and program, the titles of contents can be read out rapidly to be displayed. Allocation class is provided as attribute information relating to the attributes of files to be recorded on an optical disc, and files with the class of Gathered File are collectively recorded in a Gathered File area which is formed at a prescribed position on the optical disc. File 1 to File 3 including the titles of the contents are recorded in this Gathered File area. The recording area between A1 and A2 for FSD (File System Descriptor) is fixed but the recording area between A3 and A4 of the Gathered File area can be changed if necessary.

Abstract: A picture decoding method and apparatus for encoding a video signal. The method includes performing an encoding process on the video signal to generate a bit stream compatible with MPEG 1 moving picture video standard. The method further includes controlling the encoding process so as to generate the bit stream which includes, in a previous picture header, an extension start code indicating the beginning of extension data added when a picture header includes control data that is newly added in MPEG 2 standard format and the extension data, and does not include, in a current picture header, the extension start code and the extension data.

Abstract: In DVRVolume( ), there is stated the information pertinent to the totality of the information recorded in a disc. The information recorded in the disc can be confirmed on the basis of this description. In TableOfPlayList( ), there is stated the information usable in reproducing the information recorded in the disc. Using this description, the desired information can be retrieved extremely readily. So, the information recorded in the disc or desired information can be confirmed extremely readily.

Abstract: The characteristic playback domain of an AV stream is to be reproduced simply and reliably without complicating the management. As marks representing characteristic points of an AV stream, a mark of the type indicating a point and a mark of the type indicating a section (duration) are provided. The mark of the type indicating a point designates a point with a time stamp corresponding to a preset playback timing of the AV stream. The mark of the type indicating a section specifies the domain based on the time stamp of the playback start point of the preset playback domain of the AV stream and on the duration as from the playback start point until the playback end point.

Abstract: The present invention relates to a playback apparatus, a playback method, a program, a recording medium, a data structure, and a manufacturing method for a recording medium in which content to be played back can be switched between streams different from a main stream. A PlayList includes Main path for referring to Video and Audio within a main TS, Sub Path-A for referring to Secondary Video and Secondary Audio in a sub TS, and Sub Path-B for referring to Audio in a sub TS. STN_table( ), which is information for selecting Video and Audio in a clip AV stream file-0 as PlayItem-1 and selecting Secondary Video and Secondary Audio in clip AV stream file-1, or Audio in clip AV stream file-2 as SubPlayItem (SPI) which is simultaneously played back with PlayItem-1, is used. The present invention is applicable to a playback apparatus.

Abstract: The present invention relates to a playback apparatus, a playback method, a program, a recording medium, a data structure, and a manufacturing method for a recording medium in which content to be played back can be switched between streams different from a main stream. A PlayList includes Main path for referring to Video and Audio within a main TS, Sub Path-A for referring to Secondary Video and Secondary Audio in a sub TS, and Sub Path-B for referring to Audio in a sub TS. STN_table( ) which is information for selecting Video and Audio in a clip AV stream file-0 as PlayItem-1 and selecting Secondary Video and Secondary Audio in clip AV stream file-1, or Audio in clip AV stream file-2 as SubPlayItem (SPI) which is simultaneously played back with PlayItem-1, is used. The present invention is applicable to a playback apparatus.

Abstract: The present invention relates to a playback apparatus and a playback method which allow setting of picture-in-picture display, a program, a program storage medium, a data structure, and a recording-medium manufacturing method. Pip_metadata states information required for the picture-in-picture display. Pip_horizotal_position indicates, on the frame of a primary video, an X coordinate at the upper left corner of a sub display screen on which a secondary video is displayed. Pip_vertical_position indicates, on the frame of the primary video, a Y coordinate at the upper left corner of the sub display screen on which the secondary video is displayed. Pip_scale states information indicating the size of the sub display screen on which the secondary video is displayed.

Abstract: For a large capacity recording medium, a user interface having high flexibility and enriched representation is accomplished. A flag that represents whether a play item has a multiple angle structure of which the play item is reproduced with a plurality of angles is described. In addition, a flag that represents whether the beginning of each decode unit is an angle switchable point is described. In a seamless multiple angle structure, the current angle can be switched without need to increase the number of interleave units. In a nonseamless multiple angle structure, with the flag, in a predetermined region on the rear end side of each angle, the current angle is prohibited from being switched. Thus, when a play item exits from the multiple angle, discontinuity in the reproduction can be prevented. In addition, with a flag that represents whether a sub play item should be reproduced not in synchronization with a main path, the sub play item of only audio data can be used as a BGM.

Abstract: A picture decoding method and apparatus for encoding a video signal. The method includes performing an encoding process on the video signal to generate a bit stream compatible with MPEG 1 moving picture video standard. The method further includes controlling the encoding process so as to generate the bit stream which includes, in a previous picture header, an extension start code indicating the beginning of extension data added when a picture header includes control data that is newly added in MPEG 2 standard format and the extension data, and does not include, in a current picture header, the extension start code and the extension data.

Abstract: A picture decoding method and apparatus for encoding a video signal. The method includes performing an encoding process on the video signal to generate a bit stream compatible with MPEG 1 moving picture video standard. The method further includes controlling the encoding process so as to generate the bit stream which includes, a picture coding type in a previous picture header, an extension start code indicating the beginning of extension data added when a picture header includes control data that is newly added in MPEG 2 standard format in the previous header, the extension data in the previous header, and the picture coding type in a current picture header, and does not include the extension start code in the current picture header and the extension data in the current picture header.

Abstract: An information processing device including a data processing section which executes control of a copying process where recording data on a first medium is recorded onto a second medium, and a data conversion section which executes data conversion in the copying process, where the data processing section acquires position information of a packet, which corresponds to an angle change point, based on conversion data generated by the data conversion section and executes an updating process on a reproduction control information file where angle change point position information of data before conversion which is recorded in the reproduction control information file included in copy target data is changed to angle change point position information of data after conversion.

Abstract: A picture decoding method and apparatus for encoding a video signal. The method includes performing an encoding process on the video signal to generate a bit stream compatible with MPEG 1 moving picture video standard. The method further includes controlling the encoding process so as to generate the bit stream which includes, a picture start code indicating a start point of a picture layer in a previous picture header, an extension start code indicating the beginning of extension data added when a picture header includes control data that is newly added in MPEG 2 standard format in the previous header, the extension data in the previous header, and the picture start code in a current picture header, and does not include the extension start code in the current picture header and the extension data in the current picture header.

Abstract: The invention provides a recording/reproduction apparatus and method as well as a recording medium wherein, when nondestructive editing is executed for an AV signal, the AV signal can be reproduced seamlessly without suffering from any interruption. Information representative of states (an A type, a C type, a D type, or an E type) of an IN point and an OUT point on a Clip, designated by a Playitem, of a Playlist in which at least more than one Playitems are arranged in the order of reproduction is described in a block Playitem( ).