The Station
 
Here im going to make another personal review about a rumor of a possible creation of the External UMD Reader from Logitech for the PSP Go!
 
Some people say it's better to buy Sony's memory cards and i must say that personally    i advice you all too, i have a psp 3004, original FW (firmware) and fully updated, and i can't download stuff from PlayStation Network or put some demos or media onto my psp cause it says it dosen't find the Memory Card, so if you guys are asking what Memory Card to buy for your PSP i advice you to buy the one's from Sony cause looking at the price its pretty affordable.