Guys, help? My PSP (firmware m33) got crashed by virus... The picture and PSP folder is basically gone-case, both folder are replaced by tons of rubbish files with special characters as name (i.e. one file is named as ^%*&^$@). I can't delete it, can't move it, and to make things worse - it wiped my PSP folder clean till I can't detect any of my 'ahem' games at all.

If I reformat the memory stick, any idea how to get it working again? I don't have any recent backup, and my PSP folder is now rubbish. Really having a wonderful time here - first, my bro crash his car and now my PSP crash as well. Argh...