Uses the same techniques as jpg compression. Codecs that do spatial compression are: animation, planarrgb. Just saves info on selected frames (called keyframes) All other frames just save the difference between current frame and keyframe is small. Codecs using temporal compression are: sorenson video, h. 264. Container file format: a file format that stores both the data (frames) and how to play the data (which codec use) Avi: sometimes has uncompressed videeo, just depends. Flv (swf is not a container file format. ) Allows you to store unlimited number of audio and video tracks. (english/spanish/french all in one avi file. ) One was built for the codec your computer does have, the other is built for a codec your computer doesn"t have. Digital media player: a piece of software that will play multimedia files (audio or video). Most players will play a variety of file formats: http://www. youtube. com/watch?v=gu3_sfw6p7a&nr=1. Windows media player (bundled with windows 7). Windows media player question:what is the apple version of.