PSP 2000 is the second PSP Version also known as the PSP slim.
There is a newer version called PSP 3000 which more things were
added to.
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*.cso and *.iso are the formats of the psp games
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Is there a wireless device in a PSP
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The best place to go is PSP-THEMES.COM its so easy you look for
wat u want and click download!!
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Hands down in my opinion psp 3000. u cant just buy disks for the
psp go. if u buy the card for the psp go u have to go online to put
the game on. also it is smaller. and it just doesnt have the feel
of the original psp.