we have an inflight pRon browser, it's the customizable mission maps and helpfile images. The file format and size info should be in the help files.
I'm not sure if it's possible, but I bet you could create a "radio station" by piping an mp3 player through your microphone via the sound control panel mixer, so you and all your friends could hear it too.
It would be a bandwidth hog I'm sure, but I bet it could be done.