Abstract: A method of reproducing information stored on a data recording medium accessible via a communication network comprises loading first information stored on the data recording medium for reproduction, determining if second information associated with the first information is available through the communication network; and synchronizing the reproduction of the first information and the second information with respect to a timing information embedded in the second information. The timing information is relative to a play start time associated with the first information.

Abstract: The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.

Abstract: A recording medium includes a data area which stores at least one text subtitle stream. Each text subtitle stream includes text data to be displayed within a text subtitle region, region style information specifying a region style of the text subtitle region including an overall style of the text data, and inline style information for applying a different style to a specific portion of the text data within the text subtitle region.

Abstract: The present invention relates to method and apparatus of providing supplementary service information for A/V contents written in a recording medium. This method has a recording medium containing Presentation Language data, which have to be included like as in a digital television signal for supplementary service information in accordance with Advanced TV Enhancement Forum or Digital TV Application Software Environment standard, and reproduces, if a disk reproduction is requested, the Presentation Language data as well as requested A/V data and provides them for a connected external device such as a digital television. As a result, various video information and functions provided with Presentation Language data by a recording medium can be realized at a digital television set being able to accept Presentation Language data.

Abstract: The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.

Abstract: A method for authenticating an interactive optical disk, wherein first content is stored on the interactive optical disk for reproduction by a reproducing system, the method comprising: transmitting a first request to a content server to access second content from the content server based on enhanced navigation data recorded on the interactive optical disk; and authenticating identity of the interactive optical disk with the content server based on authentication data provided by the reproducing system, when the first request indicates that authentication is required.

Abstract: A recording medium, method and apparatus for providing management information are provided. According to an embodiment, the method includes grouping data of a digital stream into a plurality of object units, and grouping one or more object units into an object; and creating management information for accessing the data, the management information including map information and indication information, wherein the map information includes an object unit index table associated with the object units, and wherein the indication information indicates whether the data of the digital stream are grouped into the object units on a basis of a predetermined time period or an entry point information included in the digital stream.

Abstract: The present invention relates to an interactive medium and a method for managing additional contents synchronously outputted with audio/video (A/V) data in an interactive digital versatile disk (I-DVD). A player in which an interactive disk is seated accesses a server providing the additional contents of the A/V data recorded on the interactive disk before the interactive disk is reproduced, and receives updated information of the additional contents from the server. The player refers to the received updated information and determines whether an arbitrary file contained in an additional content list associated with the A/V data has been updated. The player makes a request for an original file contained in the list or an updated file designated in the updated information, and receives the requested original or updated file. Therefore, the player can always receive additional contents containing the updated file. According to this operation, the server enables the additional contents to be conveniently updated.

Abstract: In the data structure for managing reproduction of text subtitle data, a recording area stores at least one subplayitem. The subplayitem identifies more than one clip information file name, and each clip information file named by the subplayitem indicates an associated clip of auxiliary presentation data to reproduce from the recording medium. The auxiliary presentation data in each clip is associated with at least a portion of main presentation data recorded on the recording medium, and the subplayitem indicates a single presentation interval for the associated clips.

Abstract: In the data structure for managing reproduction of text subtitle data, a recording area stores a main file and at least one separate text file. The main file includes multiplexed audio and video data streams, and the text subtitle file includes a single text subtitle stream.

Abstract: A recording medium, method and apparatus for providing management information are provided. According to an embodiment, the method includes grouping data of a digital stream into a plurality of object units, and grouping one or more object units into an object; and creating management information for accessing the data, the management information including map information and indication information, wherein the map information includes an object unit index table associated with the object units, and the object unit index table includes object unit information associated with the object units, and wherein the indication information indicates whether the data of the digital stream are grouped into the object units on a basis of a predetermined time period or an entry point information included in the digital stream.

Abstract: According to an embodiment, a method of recording a digital stream on a recording medium, includes determining one of at least two recording modes to record a transmitted digital stream, wherein a first recording mode is to record data based on entry point information present in the digital stream and a second recording mode is to record data on a basis of a predetermined time; and recording the digital stream based on the determined recording mode, and recording a mode information indicating the determined recording mode.

Abstract: A method and apparatus for reproducing data from a recording medium are disclosed. The method and apparatus calls for downloading data associated with data read from the recording medium. The downloaded data is stored in a local storage using an organization ID directory. The downloaded data from the local storage and the data from the recording medium are ultimately bound together to form a virtual package.

Abstract: A method of presenting auxiliary data for an interactive recording medium is disclosed. In an interactive recording medium reproducing apparatus that reproduces A/V data and contents data recorded on an interactive recording medium and contents data provided by a contents providing server, the contents data provided by the contents providing server is presented appropriately according to the attributes of the contents data by using attribute information for the contents data.

Abstract: The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.

Abstract: A method of creating a playback control file for a recording medium and a method and apparatus for reproducing data using the playback control file are disclosed. The method of creating a playback control file includes reading an original PlayList from the recording medium, the original PlayList being configured to reproduce original data recorded on the recording medium, downloading at least one additional PlayList from an external source, the at least one PlayList being configured to reproduce additional data downloadable from the external source, and creating a composite PlayList by combining the original PlayList with the at least one additional PlayList, the composite PlayList being able to control reproduction of the original and additional data, individually or in combination. The method may further include playing-back any one of the original PlayList, the at least one additional PlayList, and the composite PlayList.

Abstract: A text subtitle decoder includes a text subtitle processor, a text renderer, and a presentation controller. The text subtitle processor parses a text subtitle stream into text data and reproduction control information, where the text data represent a subtitle text to be displayed within a text subtitle region. After the text subtitle stream is parsed, the text renderer renders the text data into bitmap data using the reproduction control information. The presentation controller controls operations of the text subtitle processor and the text renderer.

Abstract: In the data structure for managing reproduction of text subtitle data, a recording area stores a main file and at least one separate text file. The main file includes multiplexed audio and video data streams, and the text subtitle file includes a single text subtitle stream.

Abstract: The present invention relates to a recording medium containing moving picture data and additional information thereof and to reproducing method and apparatus of the recording medium. The present recording medium has script files including additional information about moving picture data, e.g., scene descriptive text and introduction of characters, etc. In addition, information linking each script file with a section of moving picture data to be presented with contents of the script file is included in a link data file or is contained in a filename of the script file. In reproduction of the recording medium, a script file linked with presently reproduced moving picture data section is determined and searched for based on the link data file or every filename of the script files, and contents of the found script file are presented together with the presently reproduced moving picture data. Furthermore, previously presented additional information is removed depending on data or filename of the found script file.

Abstract: In the method, video data is reproduced from the recording medium, and an I-picture and a number of P-pictures are output as a still picture based on the reproduced video data. The output data may then be received and decoded for display.