Abstract: A server apparatus (1) includes a deletion information decision section (104) and a management information update section (105). The deletion information decision section (104) decides a file from among files of an AV content already stored in a storage section (202) of a receiving apparatus (2), the file to be decided being so deleted as to be prevented from being used in the receiving apparatus (2) when files constituting an AV content that is to be newly transmitted is stored in the storage section (202). The management information update section (105) transmits, to the receiving apparatus (2), management information including deletion information for specifying the file thus decided. The receiving apparatus (2) includes a deletion section (205) for deleting, from the storage section (202), the file specified by the deletion information of the management information received from the server apparatus (1).

Abstract: An original stream file and an after-recording data file are managed as different files. In the original stream file, data is made up of sets of partial data (CU) divided in accordance with a predetermined interval. Likewise, in the after-recording data file, data is made up of sets of partial data (CA) divided in accordance with a predetermined interval. These sets of data are recorded onto a disc such that the after-recorded data (CA) is recorded in a region adjacent to a relevant original stream (CU). This allows reproduction and real-time after-recording with the use of a general MPEG-2 PS/TS decoder. Moreover, this allows realization of data recording that causes less interruption of reproduction when non-destructive editing is carried out with respect to an after-recorded result.

Abstract: An original stream file and an after-recording data file are managed as different files. In the original stream file, data is made up of sets of partial data (CU) divided in accordance with a predetermined interval. Likewise, in the after-recording data file, data is made up of sets of partial data (CA) divided in accordance with a predetermined interval. These sets of data are recorded onto a disc such that the after-recorded data (CA) is recorded in a region adjacent to a relevant original stream (CU). This allows reproduction and real-time after-recording with the use of a general MPEG-2 PS/TS decoder. Moreover, this allows realization of data recording that causes less interruption of reproduction when non-destructive editing is carried out with respect to an after-recorded result.

Abstract: An original stream file and an after-recording data file are managed as different files. In the original stream file, data is made up of sets of partial data (CU) divided in accordance with a predetermined interval. Likewise, in the after-recording data file, data is made up of sets of partial data (CA) divided in accordance with a predetermined interval. These sets of data are recorded onto a disc such that the after-recorded data (CA) is recorded in a region adjacent to a relevant original stream (CU). This allows reproduction and real-time after-recording with the use of a general MPEG-2 PS/TS decoder. Moreover, this allows realization of data recording that causes less interruption of reproduction when non-destructive editing is carried out with respect to an after-recorded result.

Abstract: An original stream file and an after-recording data file are managed as different files. In the original stream file, data is made up of sets of partial data (CU) divided in accordance with a predetermined interval. Likewise, in the after-recording data file, data is made up of sets of partial data (CA) divided in accordance with a predetermined interval. These sets of data are recorded onto a disc such that the after-recorded data (CA) is recorded in a region adjacent to a relevant original stream (CU). This allows reproduction and real-time after-recording with the use of a general MPEG-2 PS/TS decoder. Moreover, this allows realization of data recording that causes less interruption of reproduction when non-destructive editing is carried out with respect to an after-recorded result.

Abstract: The present invention provides a content reproducing/editing system and a content reproducing/editing apparatus for displaying to a user that other users cannot view associated information even if the associated information is added to content data. Further, it provides a content reproducing/editing system and a content reproducing/editing apparatus for displaying to the user that, when performing editing to delete a segment of the content data to which the associated information is added, the associated information is added to the segment to be deleted. It is displayed to a user X that, even if a comment is added, other users Y, Z, and the like cannot view the comment and it is checked whether the comment is added. It is displayed to the user X that, when performing editing to delete a specified segment, the comment is added to the segment and it is checked whether the deletion is executed.

Abstract: A system records an AV stream composed of a plurality of record units (RUs) containing independently reproducible video units (VUs) of at least video or audio and program information (Movie atom) managing the AV stream, onto a recording medium. The program information contains a piece of information (Edit list atom) that manages a point of junction between the record units or between AV streams. In decoding the AV stream, decoding is halted or decoders are switched at the point of junction, based on the management information on the points of junction, for example.

Abstract: To produce a user program externally referring to an original program and to record postrecording data to the user program, ref_counter that indicates how many times the postrecording data is referred to from a user program of the postrecording data is set (S1505). The ref_counter having been set is recorded onto an optical disc, along with the user program thus produced (S1507).

Abstract: An original stream file and an after-recording data file are managed as different files. In the original stream file, data is made up of sets of partial data (CU) divided in accordance with a predetermined interval. Likewise, in the after-recording data file, data is made up of sets of partial data (CA) divided in accordance with a predetermined interval. These sets of data are recorded onto a disc such that the after-recorded data (CA) is recorded in a region adjacent to a relevant original stream (CU). This allows reproduction and real-time after-recording with the use of a general MPEG-2 PS/TS decoder. Moreover, this allows realization of data recording that causes less interruption of reproduction when non-destructive editing is carried out with respect to an after-recorded result.

Abstract: The invention provides data for display on the display area for a child frame when the child frame is synthesized and displayed on the parent frame in picture-in-picture playback in order to give the displayed area of the child frame in conformity with the video content in the parent frame, as well as providing a video display apparatus etc. for displaying the child frame at an appropriate displayed position using the data for display. A video display apparatus 1 includes: decoders 101 and 103 for decoding two sets of video data; a synthesizer 105 for synthesizing the decoded videos to output; an input unit 108 for commanding display/non-display of the child frame; a processing controller 109 for controlling the operations of decoders 101 and 103 in accordance with the command; and a position designator 110 which receives the command and the data for display, and time information and designates the displayed position of the child frame to the synthesizer 105.

Abstract: The invention provides data for display on the display area for a child frame when the child frame is synthesized and displayed on the parent frame in picture-in-picture playback in order to give the displayed area of the child frame in conformity with the video content in the parent frame, as well as providing a video display apparatus etc. for displaying the child frame at an appropriate displayed position using the data for display. A video display apparatus 1 includes: decoders 101 and 103 for decoding two sets of video data; a synthesizer 105 for synthesizing the decoded videos to output; an input unit 108 for commanding display/non-display of the child frame; a processing controller 109 for controlling the operations of decoders 101 and 103 in accordance with the command; and a position designator 110 which receives the command and the data for display and time information and designates the displayed position of the child frame to the synthesizer 105.

Abstract: The invention provides data for display on the display area for a child frame when the child frame is synthesized and displayed on the parent frame in picture-in-picture playback in order to give the displayed area of the child frame in conformity with the video content in the parent frame, as well as providing a video display apparatus etc. for displaying the child frame at an appropriate displayed position using the data for display. A video display apparatus 1 includes: decoders 101 and 103 for decoding two sets of video data; a synthesizer 105 for synthesizing the decoded videos to output; an input unit 108 for commanding display/non-display of the child frame; a processing controller 109 for controlling the operations of decoders 101 and 103 in accordance with the command; and a position designator 110 which receives the command and the data for display and time information and designates the displayed position of the child frame to the synthesizer 105.

Abstract: The invention provides data for display on the display area for a child frame when the child frame is synthesized and displayed on the parent frame in picture-in-picture playback in order to give the displayed area of the child frame in conformity with the video content in the parent frame, as well as providing a video display apparatus etc. for displaying the child frame at an appropriate displayed position using the data for display. A video display apparatus 1 includes: decoders 101 and 103 for decoding two sets of video data; a synthesizer 105 for synthesizing the decoded videos to output; an input unit 108 for commanding display/non-display of the child frame; a processing controller 109 for controlling the operations of decoders 101 and 103 in accordance with the command; and a position designator 110 which receives the command and the data for display and time information and designates the displayed position of the child frame to the synthesizer 105.

Abstract: A system records an AV stream composed of a plurality of record units (RUs) containing independently reproducible video units (VUs) of at least video or audio and program information (Movie atom) managing the AV stream, onto a recording medium. The program information contains a piece of information (Edit list atom) that manages a point of junction between the record units or between AV streams. In decoding the AV stream, decoding is halted or decoders are switched at the point of junction, based on the management information on the points of junction, for example.

Abstract: The invention provides data for display on the display area for a child frame when the child frame is synthesized and displayed on the parent frame in picture-in-picture playback in order to give the displayed area of the child frame in conformity with the video content in the parent frame, as well as providing a video display apparatus etc. for displaying the child frame at an appropriate displayed position using the data for display. A video display apparatus 1 includes: decoders 101 and 103 for decoding two sets of video data; a synthesizer 105 for synthesizing the decoded videos to output; an input unit 108 for commanding display/non-display of the child frame; a processing controller 109 for controlling the operations of decoders 101 and 103 in accordance with the command; and a position designator 110 which receives the command and the data for display and time information and designates the displayed position of the child frame to the synthesizer 105.

Abstract: An original stream file and an after-recording data file are managed as different files. In the original stream file, data is made up of sets of partial data (CU) divided in accordance with a predetermined interval. Likewise, in the after-recording data file, data is made up of sets of partial data (CA) divided in accordance with a predetermined interval. These sets of data are recorded onto a disc such that the after-recorded data (CA) is recorded in a region adjacent to a relevant original stream (CU). This allows reproduction and real-time after-recording with the use of a general MPEG-2 PS/TS decoder. Moreover, this allows realization of data recording that causes less interruption of reproduction when non-destructive editing is carried out with respect to an after-recorded result.

Abstract: To provide a video data reproducing apparatus or the like, which includes: a flag reader 101 for reading out a flag that designates a playback style during special playback, from video data; decoders 102 and 103 for decoding two sets of video data; a synthesizer 106 for combining the decoded videos to output the result; and a manager 109 for controlling the operations of decoders 102, 103 and synthesizer 106 in accordance with the flag value, and which manages the playback style in the special playback during picture-in-picture playing in accordance with the flag value, to thereby realize the playback style of the picture-in-picture video during the special playback that reflects the distributor's intention.

Abstract: There are provided a storage device and a computer-readable medium capable of efficiently storing keywords contained in description information and efficiently retrieving the keyword. A list producing portion (6) extracts the keywords from the description information and produces a keyword list correlating the keywords with the scene information containing the keywords. A description information converter (8) converts the keywords contained in the keyword list received from the list producing portion (6) among the keywords contained in the externally received description information into reference information for specifying the keywords in the keyword list received from the list producing portion (6). A storage (10) stores the converted description information provided from the description information converter (8) and the keyword list provided from the list producing portion (6).

Abstract: To provide a video data reproducing apparatus or the like, which includes: a flag reader 101 for reading out a flag that designates a playback style during special playback, from video data; decoders 102 and 103 for decoding two sets of video data; a synthesizer 106 for combining the decoded videos to output the result; and a manager 109 for controlling the operations of decoders 102, 103 and synthesizer 106 in accordance with the flag value, and which manages the playback style in the special playback during picture-in-picture playing in accordance with the flag value, to thereby realize the playback style of the picture-in-picture video during the special playback that reflects the distributor's intention.

Abstract: There are provided a storage device and a computer-readable medium capable of efficiently storing keywords contained in description information and efficiently retrieving the keyword. A list producing portion (6) extracts the keywords from the description information and produces a keyword list correlating the keywords with the scene information containing the keywords. A description information converter (8) converts the keywords contained in the keyword list received from the list producing portion (6) among the keywords contained in the externally received description information into reference information for specifying the keywords in the keyword list received from the list producing portion (6). A storage (10) stores the converted description information provided from the description information converter (8) and the keyword list provided from the list producing portion (6).