I have a 3.71M33-4 + 1.50(2) PSP and just bought a spare Datel "pandora-compatible" battery . I just read we also need a spare Memory Stick too? I only have one memory Stick (Pro Duo) that I use to store all my emulators/PS games, etc.

Is it possible to do a Pandora's Battery using just one memory stick? Then after completion is it possible to back up the Pandora memory stick (image-wise) and then restore my emulator/PS games. Then whenever I need to downgrade using Pandora's Battery I can copy back the Pandora Memory Stick.

Is this possible?