An information storage device, comprises an information input device for acquiring voice data and/or image data, a falsification prevention circuit that subjects the voice data and/or image data to falsification prevention processing, operation members for carrying out editing operations on the voice data and/or image data, and a controller for creating an editing evidence file that gives a history of editing operations on the voice data and/or image data, based on editing operations using the operation members.

A method, system and computer program product for interactively identifying same individuals or objects present in video recordings is disclosed. When a thumbnail in a set of thumbnails is selected, new information is obtained. The new information may be that an individual or object is present in the portion of the video recording associated with the thumbnail. A search can be carried out for the individual or object based on the new information. The search generates new match likelihoods for each of displayed thumbnails within a user interface page. The displayed thumbnails are re-ordered based on the new match likelihoods.

A data recording apparatus including: a data reading device configured to read data from a first recording medium and configured to store data and first management data for managing the data by file; a data recording device configured to record data on a second recording medium; a management data producing device configured to produce second management data for managing data recorded on the second recording medium based on the first management data of the first recording medium on which the data recorded on the second recording medium has been recorded; a data determining device configured to determine data unrecorded on the second recording medium by comparing the first management data read by the data reading device from the first recording medium with the second management data recorded on the second recording medium; a control device configured to read the data determined by the data determining device from the first recording medium and cause the recording device to record the read data onto the second recording medium; and a display device configured to display the recording status of data, managed by the first management data read by the reading device from the first recording medium, on the second recording medium, wherein the recording status includes one of recording of data complete, recording of data in progress, and recording of data yet to begin.

A play back device includes a readout unit and a playback unit. The readout unit reads out an encoded main video stream and an encoded sub-video stream that are recorded in a recording medium. The sub-video stream is a sub-video that is to be superimposed on the main video and displayed. The playback unit plays the main video stream and the sub-video stream that have been read out. The sub-video stream includes multiple sets, each set including a first sub-video stream for a first luminance dynamic range and a second sub-video stream for a second luminance dynamic range, which is wider than the first luminance dynamic range. In the same set in the multiple sets, a registration order of the first sub-video stream in the first database and a registration order of the second sub-video stream in the second database are the same.

A tape method, according to one embodiment, includes: adjusting a position of a tape head in the tape drive relative to a magnetic tape such that the tape head is positioned at an accumulating backhitchless flush (ABF) wrap on the magnetic tape. A first index is also written in the ABF wrap. The first index corresponds to data written in a data partition on the magnetic tape, and the ABF wrap and the data partition are different partitions. Furthermore, in response to writing the first index in the ABF wrap, the position of the tape head is adjusted relative to the magnetic tape such that the tape head is positioned at the data partition. A first empty index is also appended to an end of the data written in the data partition, where a size of the first empty index is less than a size of the first index.

A recording medium according an aspect of the present disclosure has recorded therein a main video stream where a main video has been encoded, and a sub-video stream where a sub-video, that is to be superimposed on the main video and displayed, has been encoded. The sub-video stream includes bitmap data indicating a design of the sub-video and palette data specifying the display color of the design. The palette data includes first palette data for a first luminance dynamic range (SDR), and second palette data for a second luminance dynamic range (HDR) that is broader than the first dynamic range.

A method and an apparatus for rearrangement of media data using visual representations of the media data are described. A displaying unit displays visual representations of media data items in a temporal order according to temporal metadata of the media data items. An operation unit changes the position of the visual representation of a first media data item upon receipt of a user input. Automatically, the position of the visual representations of some other media data items are changed corresponding to the position change of the visual representation of the first media data item.

Provided is a data structure that makes it possible to easily understand a relationship between pre- and post-editing moving image data on a frame-by-frame basis. A data file has an area for moving image data, and an area, different from the area for the moving image data, for associated information related to the moving image data. The associated information includes identification information for identifying a data file for moving image data related to the moving image data, and information specifying a segment of frames of the moving image data.

A recording medium according an aspect of the present disclosure has recorded therein a main video stream where a main video has been encoded, and a sub-video stream where a sub-video, that is to be superimposed on the main video and displayed, has been encoded. The sub-video stream includes bitmap data indicating a design of the sub-video and palette data specifying the display color of the design. The palette data includes first palette data for a first luminance dynamic range (SDR), and second palette data for a second luminance dynamic range (HDR) that is broader than the first dynamic range.

A method, system and computer program product for interactively identifying same individuals or objects present in video recordings is disclosed. When a thumbnail in a set of thumbnails is selected, new information is obtained. The new information may be that an individual or object is present in the portion of the video recording associated with the thumbnail. A search can be carried out for the individual or object based on the new information. The search generates new match likelihoods for each of displayed thumbnails within a user interface page. The displayed thumbnails are re-ordered based on the new match likelihoods.