How To Get Rid of Corrupted Data Icons (Tutorial)
Here is the tutorial on how to get rid [of most] of those corrupted data icons.
(ADMIN: Sticky this so people don't ask about this every day)
BEFORE CONTINUING, BACKUP THE CONTENTS OF YOUR MEMORY CARD
1) Connect your PSP
2) Download the attached .zip file
5) Enter the name of a folder that shows the corrupted data icon (more information about this on the program itself)
6) Run the homebrew from your PSP to confirm it still works.
7) Restore whatever programs dont work anymore from your memory card backup. (Because some homebrews are required to stay in a specific folder)