Abstract: A method of and apparatus for merging bit streams for seamless reproduction, and a recording medium for recording control information for bit stream merging. System clock reference (SCR) control information representing whether the SCR value of a bit stream is temporally discontinuous with respect to that of the preceding bit stream at the boundary between the two bit streams is recorded when the two bit streams are being merged. Thus, even where the SCR value at the boundary between merged bit streams rapidly changes when the merged bit stream is reproduced, seamless reproduction is accomplished. The SCR control information includes at least one among a control information identifier, a control information length indicator, a discontinuity indicator, and other information.

Abstract: A method and apparatus for recording and/or reproducing an audio highlight portion of an audio selection, and a recording medium for storing additional information therefor. A particular portion is designated on an audio track as a representative portion of the audio track. Reproduction related information for reproducing the representative portion is recorded to a predetermined area on the recording medium. Accordingly, a user can easily identify the contents of the track, such as for example, music, within a short time even if many different audio selections are recorded to individual audio tracks on a recording medium.

Abstract: A DVD-Audio which includes a data zone for storing data to be reproduced and an information zone for storing information on the data to be reproduced. The information zone includes directories of a video title set (VIDEO_TS) and an audio title set (AUDIO_TS). The AUDIO_TS directory includes information on an audio manager (AMG) having information on audio titles. The data zone includes the audio titles each having an audio title set information (ATSI) followed by a plurality of contiguous audio objects (AOBs). The ATSI includes a plurality of audio stream attributes each having an audio coding mode, first to third quantization bit numbers, first to third sampling frequencies and decoding algorithm information relating to the number of audio channels. Each of the AOBs includes a plurality of audio packs recorded with audio data corresponding to the decoding algorithm stored in the audio stream attribute.

Abstract: A method for generating additional information for guaranteeing seamless playback of data streams includes generating data stream information for each of two or more data streams, which includes packet data to which information on an arrival time of the respective packet data is added. The data stream information includes seamless playback information, which indicates whether a corresponding data stream is to be seamlessly reproduced after playback of a preceding data stream, and/or seamless time control information for controlling an output time of the corresponding data stream to be seamlessly reproduced. Therefore, data streams can be seamlessly reproduced without interruption between the data streams, by using data stream information which includes seamless information and/or seamless time control information including reference time, an offset value and/or a gap length value.

Abstract: A method for generating additional information for guaranteeing seamless playback of data streams, a recording medium for storing the information, and recording, editing and/or playback apparatus using the same are provided. The method generates additional information for guaranteeing seamless playback. The method includes a step of generating data stream information for each of two or more data streams, which includes packet data to which information on an arrival time of the respective packet data is added. The data stream information includes seamless playback information, which indicates whether a corresponding data stream is to be seamlessly reproduced after playback of a preceding data stream, and/or seamless time control information for controlling an output time of the corresponding data stream to be seamlessly reproduced.

Abstract: A method for generating additional information for guaranteeing seamless playback of data streams, a recording medium for storing the information, and recording, editing and/or playback apparatus using the same are provided. The method generates additional information for guaranteeing seamless playback. The method includes a step of generating data stream information for each of two or more data streams, which includes packet data to which information on an arrival time of the respective packet data is added. The data stream information includes seamless playback information, which indicates whether a corresponding data stream is to be seamlessly reproduced after playback of a preceding data stream, and/or seamless time control information for controlling an output time of the corresponding data stream to be seamlessly reproduced.

Abstract: An information storage medium which contains preload information, a reproducing apparatus and a reproducing method. The information storage medium includes AV data and a markup language document displaying the AV data which is decoded and reproduced and including preload information that allows the reproducing apparatus to read a file to be preloaded for seamless reproduction of the AV data and to store it into a memory. The information storage medium contains the markup language document to prevent a video picture from being interrupted when the AV data recorded in the DVD is reproduced and displayed through the markup language document. The reproducing apparatus and reproducing method reproduce information from the information storage medium.

Abstract: An information storage medium which contains preload information, a reproducing apparatus and a reproducing method. The information storage medium includes AV data and a markup language document displaying the AV data which is decoded and reproduced and including preload information that allows the reproducing apparatus to read a file to be preloaded and to store it into a memory. The information storage medium contains the markup language document to prevent a video picture from being interrupted when the AV data recorded in the DVD is reproduced and displayed through the markup language document. The reproducing apparatus and reproducing method reproduce information from the information storage medium.

Abstract: A storage medium which stores catalog information and a catalog information recording and/or playback apparatus and method therefor. Using the method, catalog information including a still picture and additional information together with audio data are recorded on a storage medium such as a digital versatile disk (DVD), which is an optical record storage medium, and the catalog information is played back during playback of the audio data, to thereby provide various information on the audio data. Also, the apparatus includes a buffer memory for catalog playback which maintains a predetermined standard and compatibility, and is capable of real-time reading during playback of the audio data, and automatically plays back the catalog content, corresponding to the playback state of the audio data, when there is no additional selection of a user.

Abstract: A storage medium which stores catalog information and a catalog information playback apparatus and method therefor. Using the method, catalog information including a still picture and additional information together with audio data are recorded on a storage medium such as a digital versatile disk (DVD), which is an optical record storage medium, and the catalog information is played back during playback of the audio data, to thereby provide various information on the audio data. Also, the apparatus includes a buffer memory for catalog playback which maintains a predetermined standard and compatibility, and is capable of real-time reading during playback of the audio data, and automatically plays back the catalog content, corresponding to the playback state of the audio data, when there is no additional selection of a user.

Abstract: A multi-session disc having a digital versatile disc (DVD) application session, a recording/reproducing apparatus, and a recording/reproducing method, are provided. In this multi-session disc, which has a compact disc read only memory (CD-ROM) session, a lead-in area, a lead-out area and a user area, each having a compact disc read only memory (CD-ROM) format, are distinguished and digital versatile disc (DVD) application according to a predetermined file system is recorded in the user area. Therefore, the disc can be used for a music video or a presentation which requires a short reproduction time using a low-priced CD. Also, general CD players can reproduce audio information in an audio CD session, DVD players can reproduce a DVD application in a CD-ROM session, and audio CD players, which support a multi-session CD, can reproduce a DVD application as well as audio information.

Abstract: An audio recording medium, methods for recording data on and reproducing data from the audio recording medium, and recording and reproducing apparatuses therefor. In the audio recording medium, audio data are recorded in a plurality of tracks in predetermined write units, and identification data for indicating the start position of each of the tracks, such as mute data, are recorded in write units segregated from the predetermined write units of the audio data. Thus, if a mute period is unnecessary, the mute data can be easily removed.

Abstract: An image storage medium with a search information file recorded thereon, a method of and reproducing apparatus reproducing the image storage medium. The image storage medium includes enhanced audio-video (ENAV) files reproducing AV (audio-video) data in an interactive mode, and a search information file that is referred to when accessing the ENAV files. The search information file, which includes search information, is cached in an ENAV buffer and is referred to when accessing the ENAV files. The ENAV files can be read more quickly since the search information regarding the ENAV files are cached and the relevant ENAV files are accessed by referring to the cached search information.

Abstract: A reproduction apparatus and a server system to provide additional information, the reproduction apparatus includes an identifier generator to generate the identifier of the contents, a network connector, and a controller to transmit the identifier generated by the identifier generator to a server system providing the additional information through the network connector, and to receive the additional information provided from the server system through the network connector.

Abstract: A disc in which a digital versatile disc (DVD) application is recorded in a physical layer of the disc, a recording/reproducing apparatus, and a recording/reproducing method are provided. In the disc, a lead-in area, a lead-out area and a user area, each having a compact disc read only memory (CD-ROM) format, are distinguished on the physical layer of the disc and a digital versatile disc (DVD) application, according to a predetermined file system, is recorded in the user area. Therefore, a low-priced disc can be used for a music video or a presentation which requires only a shorttime to reproduce since the DVD application can be recorded on and reproduced from the disc to obtain multiple functions having high image quality and high sound quality.

Abstract: An audio recording medium, methods for recording data on and reproducing data from the audio recording medium, and recording and reproducing apparatuses therefor. In the audio recording medium, audio data are recorded in a plurality of tracks in predetermined write units, and identification data for indicating the start position of each of the tracks, such as mute data, are recorded in write units segregated from the predetermined write units of the audio data. Thus, if a mute period is unnecessary, the mute data can be easily removed.

Abstract: A method for reproducing AV data in an interactive mode using a markup document includes dividing an operation state of a presentation engine for reproducing the markup document into a start state, a reproduction state, a pause state, and a stop state. In the reproduction state, the presentation engine performs a preloading process for reading the markup document into a memory, a loading process for interpreting the markup document and loading the markup document on a display screen, and an interacting process for facilitating an interaction between the markup document and a user.

Abstract: A method for reproducing AV data in an interactive mode using a markup document includes dividing an operation state of a presentation engine for reproducing the markup document into a start state, a reproduction state, a pause state, and a stop state. In the reproduction state, the presentation engine performs a preloading process for reading the markup document into a memory, a loading process for interpreting the markup document and loading the markup document on a display screen, and an interacting process for facilitating an interaction between the markup document and a user.

Abstract: A method for reproducing AV data in an interactive mode using a markup document includes dividing an operation state of a presentation engine for reproducing the markup document into a start state, a reproduction state, a pause state, and a stop state.

Abstract: A storage medium which stores catalog information and a catalog information recording and/or playback apparatus and method therefor. Using the method, catalog information including a still picture and additional information together with audio data are recorded on a storage medium such as a digital versatile disk (DVD), which is an optical record storage medium, and the catalog information is played back during playback of the audio data, to thereby provide various information on the audio data. Also, the apparatus includes a buffer memory for catalog playback which maintains a predetermined standard and compatibility, and is capable of real-time reading during playback of the audio data, and automatically plays back the catalog content, corresponding to the playback state of the audio data, when there is no additional selection of a user.