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.

Specifications

 * Adobe Flash Video File Format Specification, Version 10.1

Software

 * Adobe/Macromedia Flash Player, starting with version 6 (via SWF) or 7 (direct support)
 * VLC

Links

 * Wikipedia: Flash Video