Thumbnail recording method for providing information of video data and terminal using the same

The present invention relates to that, in particular, real-time decoding by extracting key frames from the video data, and thumbnail playback for video information providing by this thumbnail reproduction so as to provide a summary of the video method and terminal using the same on the display thumbnail image method . Thumbnail reproduction process according to the invention, to extract each of the I frames of the video data stored in the terminal step of displaying a list of moving image data as a thumbnail image; Characterized in that it comprises a; further comprising: when the displayed one of a thumbnail image is selected from thumbnail images, the thumbnail reproduction to extract keyframes at a predetermined staff interval the selected thumbnail image from the video data to be enlarged to a predetermined size and corresponding do. Mobile terminal, a thumbnail