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a piece of equipment, required to custom firmware a PSP. this bit of kit is usualy a 32-256 MB memory stick Pro Duo and used by hackers around the world.
Guy1: Dude, do you know anyone that can help me custom firmware my PSP?
Guy2: go to youtubes psphelp2008! he tells you clearly how to use a magic memory stick!
by TheKingSabz December 22, 2008
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