From the Wikipedia:
Xploder is a brand of game cheats and multimedia devices for games consoles, similar to Action Replay. Xploder products have been released for PS2, PSone, PSP, Xbox, GameCube, N64, Game Boy, Game Boy Advance, PC and others. Support for the PS3, Xbox 360 and Nintendo Wii started in 2006-2007. Newer versions for the Xbox 360 and PlayStation 3 allow users to download saved games from the Internet.
Utilizing the Xploder disc for the original PlayStation, users have found it possible to boot backup or copied versions of their games.