help plz !!!!!!!!!!!

So i been tryin to put a video on my psp for about an hour im at wits end i googled it but none of it is working
Now make a new folder called “MP_ROOT” and create a sub-folder called “100MNV01″ under it. Copy your movie in there and name it “M4Vxxxxx.MP4″. The “xxxxx” are a 5 digit number. Example: “M4V00001.MP4″. Simple as that.
^^ i did that method not working i duno what esle to do so if someone no something i dont no plz tell me thank u

depending on your firmware you either do the mproot thing or psp/video method. a newer psp fw would use the latter method.