A display processing apparatus acquires a plurality of images and time data corresponding to the respective images. The display processing apparatus selects, as the time interval at which the plurality of images are switched and displayed one by one, either a time interval based on the difference between time data corresponding to images before and after switching, or a predetermined interval. The display processing apparatus switches the plurality of images at the selected time interval, and displays them on a display device.

For playing an interactive audiovisual movie, stored in a data store of a computerized playback device is a movie episode data object which comprises a plurality of audio/video segments, separate audio tracks, and playback instructions. The playback device retrieves the playback instructions and, in accordance with the playback instructions, retrieves and plays audio/video segments, generates interface elements for receiving from a user decision commands while playing the audio/video segments, and retrieves and plays further audio/video segments depending on the user decision commands. The playback device further retrieves one of the separate audio tracks and plays the separate audio track uninterruptedly while playing an end of a first audio/video segment and a start of a second audio/video segment which is played subsequently to the first audio/video segment. Thus, an audio track is played uninterruptedly across the boundary of two consecutive audio/video segments.

For playing an interactive audiovisual movie, stored in a data store of a computerized playback device is a movie episode data object which comprises a plurality of audio/video segments, separate audio tracks, and playback instructions. The playback device retrieves the playback instructions and, in accordance with the playback instructions, retrieves and plays audio/video segments, generates interface elements for receiving from a user decision commands while playing the audio/video segments, and retrieves and plays further audio/video segments depending on the user decision commands. The playback device further retrieves one of the separate audio tracks and plays the separate audio track uninterruptedly while playing an end of a first audio/video segment and a start of a second audio/video segment which is played subsequently to the first audio/video segment. Thus, an audio track is played uninterruptedly across the boundary of two consecutive audio/video segments.

A non-transitory recording medium is provided that is reproduced by a playback device having an attribute reader, a decoder, and an outputter. The recording medium has recorded therein a video stream that is encoded video information, and a management information file correlated with the video stream. The management information file includes first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range that is wider than the first dynamic range. In a case where the first attribute information indicates the second dynamic range, the first attribute information also indicates a type of the second dynamic range.

A non-transitory recording medium is provided that is reproduced by a playback device having an attribute reader, a decoder, and an outputter. The recording medium has recorded therein a video stream that is encoded video information, and a management information file correlated with the video stream. The management information file includes first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range that is wider than the first dynamic range. In a case where the first attribute information indicates the second dynamic range, the first attribute information also indicates a type of the second dynamic range.

A playback device includes: an attribute reader that reads out first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range, from a management information file recorded in the recording medium in a manner correlated with the video stream; a decoder that generates decoded video information by reading the video stream out from the recording medium and decoding the video stream; and an outputter that, in a case where the first attribute information that has been read out indicates the second dynamic range, outputs the decoded video information, along with maximum luminance information indicating a maximum luminance of the video stream in accordance with the second dynamic range.

A playback device includes: an attribute reader that reads out first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range, from a management information file recorded in the recording medium in a manner correlated with the video stream; a decoder that generates decoded video information by reading the video stream out from the recording medium and decoding the video stream; and an outputter that, in a case where the first attribute information that has been read out indicates the second dynamic range, outputs the decoded video information, along with maximum luminance information indicating a maximum luminance of the video stream in accordance with the second dynamic range.

A portable apparatus includes a first connector, a memory, and first circuitry. The first connector automatically receives a plurality of content data from a computer. The memory stores the plurality of content data. The first circuitry performs a mutual authentication process with the computer via the first connector, and plays back the plurality of content data. The computer includes second circuitry and a second connector. The first circuitry stores the plurality of content data to a storage medium, and provides a graphical user interface to receive an input identifying a list of the plurality of content data stored in said storage medium that are to be automatically transferred to the portable apparatus. The second connector is configured to transfer the plurality of content data stored in the storage medium to the portable apparatus.

The content reproduction method includes receiving a select signal for selecting one or more pieces of content; and reproducing the selected pieces of content and one or more pieces of content which were generated or reproduced together with the selected pieces of content in a temporal space within a range.

The content reproduction method includes receiving a select signal for selecting one or more pieces of content; and reproducing the selected pieces of content and one or more pieces of content which were generated or reproduced together with the selected pieces of content in a temporal space within a range.