FLV Extract v1.6.5. FLV Extract can extract video and audio streams from FLV files without decompressing or recompressing. The video stream is saved into AVI-format and the audio is saved to MP3-format. Currently H.263/FLV1 and VP6/FLV4 are supported. Inorder to view the saved AVI-files, you need to hae the right decoders installed.