PSP firmware 3.00 file system changes
Since the release of firmware 3.0 yesterday, our PSP hacking friend 0okm has been hard at work, along with other developers intent on unlocking the golden firmware, and has made some pretty cool discoveries. Along with posting some great screenshots of a PSP running 3.00, 0okm's latest update tells us that the file system in firmware 3.00 has changed! The file system has been changed on flash0, with 0okm unable to find a Fat32 (that's a bog-standard file system for small storage devices if you didn't know) table on flash0.
Read the full text here...Source: PSPUpdates