Here's a program that allows you to convert virtually every type of audio / video format to work on the F-series via SD and USB. I recommend downloading the whole suite (only 25 megs) as this allows you to do more than just convert files. This allows you to download .flv files (youtube videos) and convert to MPEG4 format to view on the AVIC. Anyway, check it out and happy converting. http://dvdvideosoft.com/downloads/download-free-studio.htm
there is also a program called SUPER (Simplified Universal Player Encoder & Renderer) that converts a lot of video and sound files, and it is also free. Kind of hard to navigate to find the actual file to download, so i also added that link.
http://www.erightsoft.com/SUPER.html
the actual file is located at:
http://www.effectmatrix.com/total-video-converter/
I've been using this for years, works great.
Also, if you've installed a X-Fi Fatality Sound Card it comes with awsome ripping capibilities, green note tag cleaning, and organizing toolbox software.