FLV

FLV is a video container format associated with Adobe Flash Player and SWF. It is one of the two formats which together are known as Flash Video, the other being F4V.

Identification
FLV files start with a 3-byte ASCII signature: " ".

Specifications

 * Adobe Flash Video File Format Specification, Version 10.1

Metaformat files

 * Synalysis grammar file (for Hexinator / Synalize It!; more details)

Software

 * Konvertor
 * Adobe/Macromedia Flash Player, starting with version 6 (via SWF) or 7 (direct support)
 * VLC
 * 7-Zip can extract the embedded audio/video files.

Sample files

 * http://samples.mplayerhq.hu/FLV/
 * https://telparia.com/fileFormatSamples/video/flv/

Links

 * Wikipedia: Flash Video