GitHub - appelblim/Flv2Mp3: A frontend for ffmpeg written in GTK+-3.0 / C capable of transcribing video files into mp3's of variable quality and setting metadata - this is very basic, it leaks
FLV2MP3 and 10 Best Alternative Sites to Convert YouTube to MP3 [Free]
FLV2MP3 Converter Apk Download for Android- Latest version 1.0.0- com. flv2mp3.converter
3 Easy Steps For Converting YouTube Videos To Mp3 - User Generated Reviews, Galleries and more - Teksocial