Why do all my recorded files have the .flv extention?
For get_iplayer to automatically convert these flash video files you need to have ffmpeg installed. If you do have ffmpeg installed but not in the path then try telling get_iplayer where it is by using the option –ffmpeg=/path/to/ffmpeg. Some older versions of ffmpeg fail to convert flv to mp4 or avi properly and will just leave the flv file intact.
