If you're wary of lending your PSP to people who are accident-prone when it comes to deleting files or messing up software, then you may want to have this installed into your PSP. Dubbed as PSP Hide Files, this nifty application hides and displays common files and folders (such as music and video) at a touch of a button. To find out how simple this application is, check out the controls list below:

X: hides the Photo folder (Only hiding the images that are in ms0: PSP PHOTO).
O: displays the Photo folder.
Square: Hides folder ISO.
Triangle: displays folder ISO.
L: hides folder MUSIC (only hides the music that is in ms0: MUSIC).
R: displays folder MUSIC.
D-Pad Right: hides folder GAME150 (Useful to hide under homebrew kernel 1.50)
D-Pad Left: shows GAME150 folder.
D-Pad Up: hides VIDEO folder (the folder Hides ms0: VIDEO).
D-Pad Down: displays folder VIDEO

For more information and tips on how to install PSP Hide Files, check out the readme file included in the download below. Enjoy!