Homebrew coder DJGodman has updated his handy App PMF Player to Version 1.4, which allows you to load intros, cintros and gameboots .pmf files straight from your PSPs.
Changelogs:
version 1.4
Bug Fixed And Added More Info
version 1.3
First PMF Loader
Install :
1)Here you can put your pmf file (intros/cintros/gameboots), rename your pmf file to ( cintro.pmf )
ms0:/cintro.pmf
2)Intall The Program
ms0:/PSP/GAME/PMF Player/eboot.pbp /pmfPlayer.prx
Download: UL , MU
Source