Whats the best thing to chnage a flv file?

i have got music thats flv and i would moyea flv downloader like to change it to mp3 whats the best thig to do this with i dont care if i have to pay for it just would like the name of the soft were and the link to download from thanks use this program to separate the audio and video in an mp4 but it should work for what you want and its free and it is also a safe siteSo easy, I have used RZ Video Converter, it can convert any videos and audios from oneflv converter format to another format, such as flv to mp3, etc.Work well, easy to use, i like it, and i believe that once you try it, you will like it too.You can download RZ Video Converter from here: