Panasonic Intellectual Property Management Co., Ltd.

Shin-ichi Saeki

Taro Katayama

Toshiya Noritake

Kazuo Fujimoto

A data processor according to the present invention plays back video and audio from a data stream including video data and audio data, each of which is provided with time information representing its presentation time. The processor includes: a stream acquiring section for acquiring a first data stream and a second data stream continuously; an inserting section for inserting boundary-setting dummy data between the data streams; an analyzing section, which detects the dummy data and associates identification information with the video and audio data of each data stream; a control section for controlling the respective output timings of video data and audio data by reference to the time information of the video data and the time information of the audio data that are associated with the same piece of identification information; and an output section.

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Sakai, Japan

Shin-ichi Saeki