a program called pspbrew can edit icons background pics, pmfs(movie clips), and AT3s(music)
only problem is it takes a while to load big eboots like ps1 games. So to not do anything until it loads becuase it is a big strain on your cpu and your pc will get a huge slowdown until it loads. Editing things is really easy. just make sure they are the proper extensions(example: ".png" or ".at3"). Then save you eboot and replace it with the old one.
Bookmarks