Guys!!! I upgraded my PSP to 3.40 OE and installed PSPlayer. But, PSPlayer won't allow me to play MP4 movies that I convert from AVI movies. By the way, I use PSPVideo9 for conversion. Everytime I play MP4 movies, I only hear the movie but I don't see the movie. 3 questions: 1) Could it be that the movies are encoded with a codec not compatible with PSPlayer? If so, are there programs to re-encode the movies properly to play them on PSPlayer? 2) If not, what other options are there?