Ok, so i know there are other options to stream to ps3 like nero home, and tversity. But i didn't really like them. So in my searches of the net i came across a vista/xp codic pack that not only lets WMP11 play mp4's but it associates them with it!!! And even lets you put them in your WMP library!
So take that Microsoft!
The link is:
http://shark007.net/
I did a virus/spyware scan after install and found nothing! And now I can stream mp4's to my ps3 with no problems!!!!!
I just thought i would share as i was getting frustrated with not being able to stream them. So take that Microsucks!!!!!
Oh and if this is a repeat thread i'm sorry i came up empty handed with the search!
I hope this is usefull to someone else!