i think it would be either:

container: mp4
video: mp4, 800*480 px, 1X00 kbps, 2X fps
audio: mp4a (aac), various bit- and samplerate

or

container: avi
video: h264, 800*480 px, 1X00 kbps, 2X fps
audio: mp3?, various bit- and samplerate

(in my opinion the audio isn't as important as the video because the speakers aren't that good compared to the brilliant display ^^)

just play around a bit and find your own settings