A driving oriented digital video recorder (DVR) system may comprise a camera; a memory; and a control circuit. The occurrence of a predefined driving event type may be determined based on received data. An event object that includes details of the determined event may be generated, including the type of the determined event and a time association with a segment of captured driving video. Metadata tags may be generated, which contain the type of the determined event and the location of the event object in the memory of the DVR. The DVR may retrieve segments of the driving video by identifying the metadata tag as having the same event type as a query parameter and, in turn, identify the event object using the location of the event object included in the metadata tag. The driving video segment may then be located via the association with the event object.

A recording medium includes a video stream of a standard-luminance range and a video stream of high-luminance range, which are used selectively in accordance with a playback environment. The recording medium also includes a subtitle stream of the standard-luminance range and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment. A playlist file includes a management region where playback control information relating to a main stream is stored, and includes an extended region. The management region stores first playback control information specifying playing of the video stream of the high-luminance range and the subtitle stream of the high-luminance range in combination. The extended region stores second playback control information specifying playing of the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range in combination.

A sound recording device includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: record a voice; capture an image being an index for indexing the recorded voice; and assign the captured image to the recorded voice as an index during recording.

A playback device reads out from a recording medium and plays multiple High Dynamic Range (HDR) video streams that are encoded with video information. The playback device includes a first register, a second register and a playback unit. For each of the HDR video streams, the first register stores first information indicating whether the playback device corresponds to or not, and the second register stores second information indicating whether a display device connected to the playback device corresponds to or not. The playback unit plays the HDR video streams using a playback format selected based on a playback program stored in the recording medium, in a case where the first information and the second information indicate that there are multiple playback formats corresponding to both the playback device and the display device.

At least one video stream that is encoded video information, and a management information file indicating attributes relating to the entire recording medium, are recorded in a recording medium. The management information file includes attribute information indicating whether the dynamic range of luminance of an initial video stream, which is played first out of the at least one video stream when the recording medium is inserted into a playback device, is a first dynamic range, or a second dynamic range that is broader than the first dynamic range.

A method for performing an operation of a memory arrangement, comprising receiving a command at a layer of a computer system, determining if the command received is one of a first command type or a second command type, determining a type of command that is able to be received and is capable of operation of the memory arrangement, comparing the type of command capable of operation of the memory arrangement and the received command at the layer, and converting the command received at the layer to a command type capable of operation of the memory arrangement when the type of command received at the layer is different than type of command that is able to be received and is capable of operation of the memory arrangement.

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness.

An optical disc records STN_table associating HDR graphics, which are graphics having a second luminance range different from and broader than a first luminance range, with tone_mapping_info including HDR information indicating a luminance characteristic of the HDR graphics and tone_mapping_info, which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics having the first luminance range is performed, the HDR graphics, and the tone_mapping_info. The present technology is applicable to a recording medium recording graphics.

A driving oriented digital video recorder (DVR) system may comprise a camera; a memory; and a control circuit. The occurrence of a predefined driving event type may be determined based on received data. An event object that includes details of the determined event may be generated, including the type of the determined event and a time association with a segment of captured driving video. Metadata tags may be generated, which contain the type of the determined event and the location of the event object in the memory of the DVR. The DVR may retrieve segments of the driving video by identifying the metadata tag as having the same event type as a query parameter and, in turn, identify the event object using the location of the event object included in the metadata tag. The driving video segment may then be located via the association with the event object.

The present technology relates to a reproduction device, a reproduction method, and a recording medium that enable content having a wide dynamic range of brightness to be displayed with an appropriate brightness. A recording medium, on which the reproduction device of one aspect of the present technology performs reproduction, records coded data of an extended video that is a video having a second brightness range that is wider than a first brightness range, brightness characteristic information that represents a brightness characteristic of the extended video, and brightness conversion definition information used when performing a brightness conversion of the extended video to a standard video that is a video having the first brightness range. The reproduction device decodes the coded data and converts the extended video obtained by decoding the coded data to the standard video on the basis of the brightness conversion definition information.

The techniques described herein relate to methods, apparatus, and computer readable media configured to access multimedia data comprising a hierarchical track structure with a first track of a first sequence of temporally-related media units at a first level, and a second track at a second level comprising metadata specifying a temporal track derivation operation. The metadata includes a set of one or more operations to perform on the first track, each operation including a unit duration of the first sequence and a start unit in the first sequence. The temporal track derivation operation is performed on a set of media units comprising at least the first sequence, and includes applying the set of one or more operations to temporally modify the first sequence to generate second media data for the second track that includes a second sequence of temporally-related media units from the set of media units.