BRAND NEW Sony PSP Memory Stick Duo 32MB
100% Genuine Sony Made In Japan
1-Free Sony Adapter
3- Will Be Shipped BY EXPEDITED MAIL Not ByStandard Mail
Push the little HOME button on the bottom left of the face of the unit.
Use the arrow keys to move to the SETTINGS area, then move the up and down keys until you get to System Settings.
The Sony PSP will now confirm that you want to reformat the memory stick