Abstract: Before each content file is recorded first to a recording medium, a flag indicating a recording state of a content file is generated corresponding to a physical area where an index file can be continuously recorded. An index file is generated which associates attribute information with the generated flag added thereto with real data of each content file, and the generated index file is recorded to the recording medium. Since fragmentation of the physical area where the index file is recorded is restrained to a minimum level, a high-speed reading operation is realized.

Abstract: The present invention relates to a recording apparatus, a recording method, a recording medium, and an electronic camera for recording an index file which hierarchically stores index data of files recorded on the recording medium to the recording medium.

Abstract: A recording apparatus according to the present invention, comprising a creating means for excerpting excerpt information from each of a plurality of files recorded on a record medium, correlating the plurality of excerpt information with entity data of the plurality of files, and creating an index file that stores the correlated data in a predetermined format, a record medium identification information storing means for storing identification information that identifies the record medium in the predetermined format to the index file, and a recording means for recording the index file to the record medium.

Abstract: A recording apparatus and a file management method are disclosed which can be applied typically to an optical disk apparatus and make it possible to grasp a hierarchical structure readily and register or delete extract information simply and easily. Reference information pointing to slots of a higher hierarchy, a lower hierarchy and the same hierarchy is set, and a flag is set to delete or register extract information without varying the reference information.

Abstract: A recording apparatus and a file management method are disclosed which can be applied typically to an optical disk apparatus and make it possible to grasp a hierarchical structure readily and register or delete extract information simply and easily. Reference information pointing to slots of a higher hierarchy, a lower hierarchy and the same hierarchy is set, and a flag is set to delete or register extract information without varying the reference information.

Abstract: A recording apparatus such as an optical disk and a file management method are disclosed by which wastefulness caused by free slots in an index file can be reduced. To each slot of a property entry of the index file, valid/invalid information representative of whether the slot is valid or invalid is set. Further, to the header of the property entry, a last valid slot number indicative of a last one of those slots which are set to valid with the valid/invalid information is set.

Abstract: A recording apparatus, a recording method, a recording medium, and an electronic camera for recording an index file hierarchically stores index data of files recorded on the recording medium to the recording medium. The recording apparatus includes a device for creating an index file having areas assigned unique identifiers and a recording device for recording the index file to a recording medium. Files are recorded on the recording mediums and pieces of excerpted information of the flies are recorded to the areas. Each of the areas contains attribute information having first information and second information. The first information identifies whether the area is a folder for storing a collection of pieces of the excerpted information a stores a piece of the excerpted information, and the second information represents a folder to which the area belongs.

Abstract: The present invention applies illustratively to an optical disk apparatus that handles an index file formed by a series of entries comprising extract information about files. In operation, the apparatus organizes a plurality of still picture files into a single movie file and registers anew the movie file into the index file.

Abstract: A recording apparatus such as an optical disk and a file management method are disclosed by which, where an index file is formed from groups of data wherein extract information is collected for different types and one of the groups of data is used to collectively manage the other groups of data, a process relating to deletion or addition of extract information can be executed simply, easily, and with certainty. In each of slots of a property entry, information representing whether the slot is valid or invalid and information representative of a relationship to different slots to which extract information relating to the same file is allocated are recorded, and a combination of the slots in which the extract information of the one file is allocated is managed with the property entry.

Abstract: The present invention relates to a recording apparatus, a recording method, a program of the recording method, and a recording medium having the program of the recording method recorded thereon. The invention can be applied to a portable record/playback apparatus for recording video and audio data on a random access recording medium or the like in order to record a multiplexed stream in such a manner that the position of an editable boundary can be detected more quickly than previously possible. According to the invention, positional information on the editable point is recorded on the recording medium 2.

Abstract: The present invention is applied to reproduction of typically a fragment movie file having a QT format. In accordance with the present invention, management information associated with each block following a first block of the fragment movie file is modified to information compatible with management information associated with the first block and real data of the file is reproduced on the basis of the modified management information.

Abstract: A storage system for covering advantages of the “In band method” and the “Out of band method”, including an external storage device having storage data and storage operating data for operating the storage host computer connected to the external storage device on which an application is able to operate, and a storage operating server connected to the external storage device and the host computer, and having a storage operating server program, for obtaining the storage operating data from the external storage device, where the application operates the storage operating data through the storage data server program.

Abstract: The present invention relates to a file management technique using indexes, wherein retrieval results and conditions for retrieval are recorded and stored on an entry for a virtual folder on the index for efficient later use. By this feature, objects for retrieval can be refined by using the recorded retrieval results, so that the processing for retrieval can substantially be simplified.

Abstract: A playback apparatus which plays back video or music contents, includes: a playback unit playing back the video or music contents recorded on a recording medium; an output unit outputting the video or music contents played back in the playback unit; and a control unit controlling at least an operation of the playback unit, wherein in the video or music contents, a quick reference mark is set at multiple places, in response to user manipulation, the control unit finds a start of a sequence in accordance with the quick reference mark to control the operation of the playback unit to play back the video or music contents, in response to user manipulation for the quick reference, the control unit varies a priority that expresses a degree served for the quick reference, and for the mark having a low priority, the control unit accepts no user manipulation for quick reference.

Abstract: A recording apparatus and a file management method are disclosed which can be applied typically to an optical disk apparatus and make it possible to grasp a hierarchical structure readily and register or delete extract information simply and easily. Reference information pointing to slots of a higher hierarchy, a lower hierarchy and the same hierarchy is set, and a flag is set to delete or register extract information without varying the reference information.

Abstract: A recording apparatus such as an optical disk and a file management method are disclosed by which wastefulness caused by free slots in an index file can be reduced. To each slot of a property entry of the index file, valid/invalid information representative of whether the slot is valid or invalid is set. Further, to the header of the property entry, a last valid slot number indicative of a last one of those slots which are set to valid with the valid/invalid information is set.

Abstract: A recording apparatus such as an optical disk and a file management method are disclosed by which, where an index file is formed from groups of data wherein extract information is collected for different types and one of the groups of data is used to collectively manage the other groups of data, a process relating to deletion or addition of extract information can be executed simply, easily, and with certainty. In each of slots of a property entry, information representing whether the slot is valid or invalid and information representative of a relationship to different slots to which extract information relating to the same file is allocated are recorded, and a combination of the slots in which the extract information of the one file is allocated is managed with the property entry.

Abstract: A recording apparatus includes a first recording control unit configured to control recording of first management information so that fragments of the first management information and fragments of data are alternately placed, each fragment of the first management information being used to read the corresponding data fragment; a second recording control unit configured to control recording of second management information after all of the data has been recorded, the second management information being used to read all of the data; and a rewrite control unit configured to control rewrite of the first management information or the data after all of the data has been recorded so that any fragment of the first management information is not used to read the corresponding data fragment.

Abstract: A file managing apparatus is disclosed which is capable of restoring deleted files with ease. When a user gives an instruction to delete a file 6, a parent entry number for the file 6 is changed from “1” to “2” in a property list having the entry number 6 associated with the file 6. Because the parent entry number that is set for the value “2” points to the entry of a recycle bin, the file 6 is placed in a virtually deleted state. Any virtually deleted file is later restored easily through simple processing.

Abstract: The present invention is applied, for example, to a video disk apparatus such that a new folder is produced on a recording medium in response to an operation of a folder switch which accepts an instruction to produce a folder and a result of image pickup is recorded under the produced folder.