Abstract: A method of and an apparatus for efficiently navigating a plurality of contents which are reproduced in a device for reproducing interactive contents, such as a computer, a DVD player, a PDA, or a cellular phone, by using a device having a limited number of input keys. Focusing layer values are allotted to contents elements to form focusing layers and the contents elements included in any one focusing layer are provided to a user. The focusing is moved when a command to move the focusing is input from the user. Accordingly, any kind of media storing interactive contents formed by using markup language is navigable using the device having the limited number of input keys, such as a television remote controller.

Abstract: An information storage medium on which multi-angle data is recorded includes at least two clips in each of which video object data for an angle of the multi-angle data is recorded. The at least two clips are recorded in contiguous areas of the information storage medium.

Abstract: An apparatus and method for reproducing multi-angle data in a seamless manner, even during a change of angle, and an information storage medium on which the multi-angle data is recorded. AV data divided into clips, which are recording units, is recorded on the information storage medium. Additional information regarding jump points is recorded on a space of the information storage medium other than where the clips are recorded. The apparatus for reproducing the multi-angle data includes a reading unit which reads data from the information storage medium, and a reproducing unit which reproduces the data read by the reading unit by searching for and reproducing clips corresponding to the read data when the read data is multi-angle data, and, if there is an angle change command, reproducing clips for a new angle from a jump point of the clip for the new angle.

Abstract: An information storage medium storing event information for generating an event with reference to an audio/video data structure and an apparatus and method thereof. The information storage medium includes: core data, that includes audio/video data and navigation data for reproducing the audio/video data; and program data that is used for interaction with a user, wherein the program data includes event occurrence information for generating an event with reference to a structure of the audio/video data.

Abstract: Provided are a method of recording content, a method of providing a title key, an apparatus for recording content, and a content providing server, which can prevent unauthorized users from recording the title key on a plurality of discs. The method of recording content downloaded from a network includes: receiving a title key, which is encrypted with a disc key of a disc on which content is to be recorded in a recording apparatus, from a server; and recording the received title key and the content on the disc.

Abstract: A storage medium storing multimedia data for the reproduction of audio-visual (AV) data and a programming function, and a reproducing apparatus and method thereof. The storage medium includes: reproduction mode data for reproducing audio-visual (AV) data; program data including a plurality of program applications for providing interactive functions with a user and/or additional functions using the AV data; system data for controlling the execution of the reproduction mode data and the program data; and application objects for managing the execution of the program data and information on the reproduction mode data to be reproduced along with the execution of the program data. Accordingly, various user interfaces and/or various additional functions can be provided, as well as simple reproduction of AV data. Also the program application can be prevented from using malicious intent, and program applications having the same function can be reused without modification or recompilation.

Abstract: An information storage medium on which video data are recorded, includes: a plurality of clips that are recording units in which the video data are stored; and text data for subtitles which are recorded separately from the plurality of clips and overlappable with an image according to the video data and then outputtable, the text data including data for providing subtitles in at least one language.

Abstract: An information storage medium on which video data are recorded, includes: a plurality of clips that are recording units in which the video data are stored; and text data for subtitles which are recorded separately from the plurality of clips and overlappable with an image according to the video data and then outputtable, the text data including data for providing subtitles in at least one language.

Abstract: An information storage medium including AV data; presentation graphics data including subtitle information corresponding to the AV data; and interactive graphics data including menu data; wherein the interactive graphics data further includes a reproducing state change navigation command to change the reproducing state of the AV data and/or the presentation graphics data.

Abstract: A metadata generating method including: receiving sub-region dividing information to divide an object into a plurality of sub-regions; and generating sub-region indicating information to indicate each of the plurality of sub-regions divided according to the sub-region dividing information.

Abstract: A reproducing medium and apparatus to help guarantee reproduction compatibility are provided. An information storage medium to be reproduced by the reproducing apparatus includes audio/video (AV) data, an interactive content used to perform interactions with users, and interactive content management information used to manage the interactive content, wherein the interactive content management information includes information regarding an application to be executed by the reproducing apparatus and information regarding a substitution application substituted for the application.

Abstract: An information storage medium which stores data structures supporting multi-angles includes clip AV streams for respective angle data of multi-angle motion picture data. As additional information for each clip AV stream, clip information is recorded on a separate storage area from that of the clip AV streams. The clip information includes jumping-point information for jumping into another angle. Each of the clip AV streams may be recorded in a contiguous recording area, or divided into smaller interleaved units that are interleaved with units of the other clip AV streams.

Abstract: An information storage medium having preload information and an apparatus and a method of reproducing the same, and more particularly, an information storage medium storing contents and preloading information in a binary format and an apparatus and method of reproducing the same. The information storage medium includes: navigation data for AV data; at least AV data which is decoded to an AV data stream with reference to the navigation data and is recorded with a format of a clip as a recording and reproducing unit; and preloading information which reads data to be preloaded corresponding to the AV data and commands the data to be stored in a buffer.

Abstract: An image processing method, including extracting shot information from metadata, wherein the shot information is used to classify a series of two-dimensional images into predetermined units; if it is determined, by using shot type information included in the shot information, that frames classified as a predetermined shot can be reproduced as a three-dimensional image, extracting background depth information from the metadata, wherein the background depth information is about a background of the frames classified as the predetermined shot; generating a depth map about the background of the frames by using the background depth information; if the frames classified as the predetermined shot comprise object, extracting object depth information about the object from the metadata; and generating a depth map about the object by using the object depth information.

Abstract: An image processing method, including extracting compensation information comprising one from among a depth compensation value and a depth value compensated for by using the depth compensation value; when the compensation information comprises the depth compensation value, compensating for a depth value to be applied to a pixel of a two-dimensional (2D) image by using the depth compensation value, and generating a depth map about the 2D image by using the compensated depth value, and when the compensation information comprises the compensated depth value, generating the depth map about the 2D image by using the compensated depth value; obtaining positions in a left-eye image and a right-eye image by using the depth map, wherein the pixel of the 2D image is mapped to the positions; and generating the left-eye image and the right-eye image comprising the positions to which the pixel is mapped.

Abstract: An information storage medium including graphic data and presentation information, and an apparatus and method of processing the graphic data are provided. The information storage medium includes the graphic data, page composition information which defines page composition of the graphic data, and the presentation information indicating when graphic screen data, which is composed with reference to the page composition information of the graphic data, is output to a display screen. Therefore, a graphic object is reusable in graphic data processing, and accordingly, a time taken to process the graphic data is reducible and memory area may be saved.

Abstract: An image decoding method, an image outputting method, an image decoding apparatus and an outputting apparatus, the image outputting method including inputting an image; and if determined that the input image is a video image that is overlaid with a graphic image, outputting an area of the input image, which is overlaid with the graphic image, as a 2-dimensional (2-D) image and outputting the other area of the input image, which is not overlaid with the graphic image, as a 3-dimensional (3-D) image; and if determined that the input image is a video image that is not overlaid with a graphic image, outputting the input image as a 3-D image.

Abstract: A method of processing images, the method including determining whether metadata for generating a depth map corresponding to a predetermined title exists for each of a plurality of titles recorded in a disk by using metadata for disk management, and including converting two-dimensional (2D) images in the predetermined title to three-dimensional (3D) images by using the metadata for generating the depth map if metadata for generating the depth map corresponding to the predetermined title exists.

Abstract: An information storage medium which stores data structures supporting multi-angles includes clip AV streams for respective angle data of multi-angle motion picture data. As additional information for each clip AV stream, clip information is recorded on a separate storage area from that of the clip AV streams. The clip information includes jumping-point information for jumping into another angle. Each of the clip AV streams may be recorded in a contiguous recording area, or divided into smaller interleaved units that are interleaved with units of the other clip AV streams.

Abstract: A method of storing multi angle data. Data for a plurality of angles of a scene are stored in interleaved blocks. Sizes of the interleaved blocks are integral multiples of sizes of integral numbered aligned units that include packets. Angle change points are included in each of the interleaved blocks, allowing a reproducing apparatus to seamlessly jump from one angle to another angle during reproduction of the multi angle data. A number of the angle points recorded on the information storage medium is computed so that a jumping distance required by the data during reproduction does not exceed a maximum jumping distance of a reproducing apparatus.