Optical disc, reproducing device, program, reproducing method, recording method
A reproducing device, optical disc technology, applied in the direction of recording/reproducing by optical method, disc-shaped record carrier, optical disc, etc., can solve the problems of high development cost and the like
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no. 1 example
[0075] The following describes an embodiment of the optical disc related to the present invention. First, in the embodiment related to the optical disc of the present invention, an embodiment related to the use of the optical disc will be described. FIG. 1 is a diagram showing how to use the optical disc of the present invention. In FIG. 1 , the optical disc related to the present invention is a BD-ROM 100 . The BD-ROM 100 is used to provide movie works to a home theater system composed of a playback device 200 , a television 300 , and a remote controller 400 .
[0076] Next, the optical disc product in the optical disc embodiment is described. Through the improvement of the BD-ROM application layer, the optical disc related to the present invention is operable.
[0077] FIG. 2 is a diagram showing the structure of a BD-ROM. The BD-ROM is shown on the fourth layer of the diagram, and the tracks on the BD-ROM are shown on the third layer. In this figure, the spiral track f...
no. 2 example
[0217] In the first embodiment, the object to be inserted is the library program; however, in the second embodiment, the object to be inserted is the display data. Display data includes image data, document data, and graphic data. Image data includes JPEG, GIF, PNG, MNG data, which is data that can be displayed through decompression processing directly performed by the image decoder 9 . Document data includes HTML / SMIL, XML documents, and text documents, which are data interpreted by the browser module 18 and can be displayed by display control based on the interpreted results, and received by the image decoder 9 .
[0218] The graphic data is data located in a so-called graphic editor, and is data expressing a three-dimensional shape and a graphic format by coordinates, vectors, and curvature. The graphic data is interpreted by the Java module 17, and can be made displayable by control based on the interpretation result, and then received by the image decoder 9.
[0219] Di...
no. 3 example
[0235] In the first embodiment, synchronous reading of the interleave unit and the program is realized by placing the interleave unit before the start point of the effective range of the corresponding program. However, with the first embodiment, even when random access is performed to the middle position of the effective range, reading should be performed from the start point of the corresponding interleave unit, so it takes a long time to perform reading. In a BD-ROM, playback paths can be defined by means of playlist information. Therefore, during the reproduction of the reproduction path, reproduction is rarely performed from the start point of the AV stream. It is more common to start reproduction from the middle of the AV stream.
[0236] If random access to an intermediate position of an AV stream or section occurs frequently, and if an interleave unit is placed before a section, optimal interleave unit reading cannot be achieved. Therefore, this embodiment proposes th...
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