It is a very popular Flash media file format widely used for Flash animation based on vector & raster graphics, as well as for Flash menus, buttons, banners. These formats are used by most popular video websites as YouTube, VEVO, Hulu, Metacafe, Yahoo! Video, etc.
Both of them are developed by Adobe Systems. Two different video file formats are known as Flash video – FLV & F4V. The encoding manner for the audio & video data within these video files is the same as within SWF files.
Flash Video is used for delivery of video over the web with the help of Adobe Flash Player version 6 and later.
