You should be able to hide corrupt icons through the recovery menu. Fully power down your PSP, then hold the R trigger while powering it back on until a new text menu comes up. I forget where it is exactly but it should be easy enough to find, the option is just called "Hide corrupt icons" IIRC.
"I think that the problem with this video is it is highly derivative of many popular bands within the genre. Although when viewed on its own merits, it does have a deeper groove. However what it has in groove, it lacks in originality. One can't help but be reminded of such bands as Pearl Jam, White Zombie, Suicidal Tendencies and other bands that bear the mantle of so called "Alternative Rock". One is even reminded of Lorie Anderson when she wore curlers. Hehehmhm! This video speaks less to the heart and more to the sphincter. In closing, I think Korn would do well to learn more from -"