I had written a program before to change the name of the folders to a longer name which after I believe 33rd character PSP didn't recognize but then some "folder specific" homebrew wouldn't run properly. So I noticed PSP lists the icons according to folder's creation date, and made a program which finds your PSP drive (as best as it can) and changes the % folder's creation date to the current time which moves the "Corrupt Data" folders waay into the bottom of the Game list. It's not as good as "completely invisible" but still rather visually pleasing :P
The README is not "really" necessary but people always ask so here it is.
ReadMe
First from the above combo box select your PSP drive. The program takes a good guess at what it already is, but just to be sure select it yourself. After you have selected the PSP drive click the button below. After you have clicked it, you will notice all the Corrupt Data icons have moved to the bottom of the list.