The program is called ffmpegX.
Where to get it: http:// ffmpegx. com/ download. html#metadata
What it does: Converts video files to several formats i.e. Mov, FLV, MP3, MP4.
How it works: The website link gives detail instructions. Essentially, you need to follow three steps after downloading the .dmg file in order for the software to install.
Cost: "Free". Asks for a small donation but you can use it without payment. There are no watermarks on the final video.
Operating system: All versions of Mac OSX.
Hope this works for you. Let me know if you need help. I would also like to know if this program does what I have mentioned. I just started using it and so I haven't toyed with it that much.
Have fun.