I have PSP 2004, cfw 5.50 Prome-4 .

I convert video to mp4 format with resolution 480*272, but my video is displayed only in normal and 4:3 mode.
I disabled vshmenu from recovery mode, nothing works, I push select, nothing happens, just video take pause.
When I use control panel while playing video, in screen mode - there shows only Normal and 4:3 .

Any suggestions, guys ?