There are two different video file formats known as Flash Video: FLV and F4V. The audio and video data within FLV files are encoded in the same manner as they are within SWF files. The F4V file format is based on the ISO base media file formatand is starting with Flash Player 9 update 3.
Is a container for storing DVD-Video. The basis of the format is MPEG-2 leg, and therefore it may contain multiple streams. It is possible to add a maximum of 9 audiois a streams and 32 kinds of subtitles. Video added solely with MPEG-2 codec.