APPENDIX D - Multiple Image Processing [TOC]
Since a GIF data stream can contain multiple images, it is necessary to describe processing and display of such a file. Because the image descriptor allows for placement of the image within the logical screen, it is possible to define a sequence of images that may each be a partial screen, but in total fill the entire screen. The guidelines for handling the multiple image situation are:
There is no pause between images. Each is processed immediately as seen by the decoder.
Each image explicitly overwrites any image already on the screen inside of its window. The only screen clears are at the beginning and end of the GIF image process. See discussion on the GIF terminator.
well thats compressed video since gif is a compression format.