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 binary stream media container format that combines several codecs of texts, subtitles, audio and video data. It can be used on web pages for video playback. It has a lot to do with the OGG format. Exists support for popular codecs MPEG-4 and MP3.