My psp doesn't read MP4 files anymore.
It isn't normal, I don't know what's going on...
It used to read these video files, but now it just doesn't
It plays mp3 and other audio files, games and pictures,
Can someone help me please?

Try downloading a converter and convert the mp4 to a different type of file (avi, mp3, etc.. ) and see if the mp4 file(s) you have might be corrupted.

Mmmm...
But the computer plays the files.
It is strange because some weeks ago I could play the same files in my psp, and now it just won't play. :eek:
Well... I guess I will try converting the files again. Thank you:)

I converted the files... And then converted them to mp4 again.
Problem resolved. :-)

Greats :-)