It is possible?
Imagine you let your PSP to a friend or something. It gets lost on the menus and accidentally executes a FW Update, or finds that video that you have converted to DivX to see if it works, to give two examples.
Im asking for passwording, or hiding in some way (I dont know, making "invisible" the file, putting a file video on another menu that isnt video so it isnt that obvious... you can't create different "folders" in some way, like on the GP2X?)
Well thats it, thanks.