Benefits of converting PowerPoint to video formats What video formats we are talking about? A Video refers to recording, manipulating, and displaying moving images, especially in a format that can be presented on a television. Video formats are confusing because most video files have at least two different types: the container and the codec used inside that container. I'll list some common video formats that we often used : AVI (.avi): Most commonly contains M-JPEG (especially from digital cameras?) or DivX (for whole movies), but can contain nearly any format (not Sorenson). Sometimes you'll see a reference to the "fourcc": this is a four-character code (such as "divx" or "mjpeg") inside the AVI container which specifies which video codec is being used. QuickTime(MOV): Most often used for the locked Apple Sorenson codec, or for Cinepak (free), but can also hold other codes such as mjpeg, etc. WMV (.wmv): More or less MPEG4; can contain nearly any codec, including several Microsoft spinoffs of MPEG-4 which vary in their freedom and licensing requirements. ASF ("Advanced Streaming Format", .asf): a subset of wmv, intended primarily for streaming: an early Microsoft implementation of an MPEG4 codec. MPEG ("Moving Pictures Expert Group"): three video formats, MPEG 1, 2, and 4. MPEG-1: Old, supported by everything (at least up to 352x240), reasonably efficient, most used in VCD. MPEG-2: A souped-up version of MPEG-1, with better compression. 720x480. Used in HDTV, DVD, and SVCD. MPEG-4: A family of codecs, some of which are open, others Microsoft proprietary. A good format for the web. MPEG spinoffs: mp3 (for music) and VideoCD.