131 Pspiso: Iso Tool

Most PSPISO files contain an EBOOT.BIN file. ISO Tool 131 decrypts this into an EBOOT.OLD file that custom firmware can execute.

Your PSP doesn't have to power the UMD motor, giving you more playtime. Portability: iso tool 131 pspiso

If the game still fails to load, return to the main menu and select “Patch Prometheus” or “ME Driver” . This modifies the PSPISO’s module files to bypass firmware checks. Most PSPISO files contain an EBOOT

Always scan files with antivirus, though the original is clean. Portability: If the game still fails to load,

DAX is a lesser-known but highly efficient compression format. ISO Tool 131 can convert PSPISO to DAX with on-the-fly decompression. While CSO is more common, DAX offers slightly better compression ratios for specific games.

: Users can back up their physical UMD discs directly to the PSP's memory stick as ISO files. XMB Shortcuts

Navigate to your game (e.g., God_of_War.iso ). Press the O button (or X depending on region).