摘要:
[Problems] To execute an updating operation or the like of an index file concerning the change in a hierarchical structure, simply and quickly. [Means for Solving the Problems] The index file is also recorded together with a contents file in a recording medium (2). The index file is generated on the basis of the contents file and the attribute information of a folder containing that contents file. The contents file and the folder form a hierarchical structure having the folder in a high hierarchy. The index file has a predetermined number of entries (or management information areas) individually corresponding to the contents file and the folder. In a first entry corresponding to the folder of a high hierarchy, there is disposed in a list form the second index information which indicates a second entry corresponding to the folder or the contents file positioned in the low hierarchy than the folder of the high hierarchy. At the second entry, there is disposed the first index information indicating the first entry.
摘要:
This invention is applied to, for example, an optical disc apparatus. In an index file comprising a series of entries constituted by excerpt information from files, a plurality of still image files are summarized into a single movie file, which is registered anew with the index file.
摘要:
[PROBLEMS] To shorten a time required for start-up. [MEANS FOR SOLVING PROBLEMS] In a recording medium, an index file for managing a contents file is recorded with the contents file. The index file is composed of, for instance, a text file (FTX), a thumbnail image file (FTH) and a property file (FP). Each file has a configuration wherein fixed length slots are successively arranged. The fixed length slots are managed by slot numbers (index information) indicating arrangement order. The file is provided with a prescribed number of management information areas wherein one or a plurality of fixed length slots are connected. The management information area is identified by the index information of the leading fixed length slot. In a prescribed entry, the slot number for identifying other entry is registered. Based on the slot number and a slot size, a storage position of other entry on the index file is detected, and data of other entry can be acquired.
摘要:
[PROBLEMS] To suppress the occurrence of fragments of an index file that manages content files recorded in a recording medium. [MEANS FOR SOLVING PROBLEMS] Content files and an index file, which manages the content files, are recorded on an optical disc (2). The index file comprises attribute information of the content files (text data of titles, thumbnail image data and so on). A microcomputer (19), when recording a particular content file onto the optical disc (2), updates the index file such that the particular content file is registered with the index file. In this case, the microcomputer (19) reserves, in the index file, a predetermined number of successive slots having a fixed length, and allocates the attribute information of the particular content file to those slots. The predetermined number may be set to, for example, the maximum or average number of slots that can be predicted for use in registering the content file.