Ok, first thing you do is google vlc media player, and see if it has an os version that works on your pda, if so, then your problem is solved. Vlc will play any format, including the mp4 you got. If that's not an option, then use quictime7 to export the file into avi, encoded with the xvid codec. That should work standard for any pda with vid playback. As for the psp playing h.264, yes it does, but only a lower level h.264 version, it doesnt have the processing power for a max output 264 file. Hell, most desktops would have trouble playing stuff encoded over about 700kbps in h.264 AVC. It does play the lower level stuff, but requires it to be encoded at 320x240 only. fortunalty, that very setting will also work with the ipod, so it becomes a dual use portable encode, and even more portables can access it if they can use qt7 or VLC. A really good way to always be able to convert from anything to anything is to learn how to use AVS scripting commands. We teach that process in the pod2peer casts. With that, you can convert an mp4 into a format that can be played on whatever you want it to.

QUOTE(TWiG - AudioPandemic @ Apr 16 2006, 03:06 PM)

I watch video casts (and listen to audio casts) on my crazy cell phone with a 1gb miniSD card and a 320x240 screen.. i have to convert some video formats to play on it, but I convert ALL of them to "save space".
I love to hear "YOUR WATCHING A MOVIE ON THAT THING???"
does anyone make a feed for their video cast that is in a "mobile format".. like 3gp or such?
Heh, I got a nokia ngage qd that I can watch up to two full movies with a 128 meg memory card, at near dvd quality clarity, using a real media encoder. If your phone uses realplayer at all, you too can do it. I made a mini rmvb tutorial once, dunno if I still have it or not though, but it showed how to convert movies, tv shows, or any other video to be played on any portable device that had real player on it