accidentally

i've accidentally erased all my 'pc retro games', actually i was renaming the directory and 'konqueror' wont accept the new name... i tried forcing it to use 'retro_pc' the old dir was 'Retro_PC'... i didn't realized that the filesystem of the dir was 'fat32'(w/c is _not_ case sensitive) when i tried to enter the dir, it was fucking empty.. i tried the 'undo' button but no luck (yes, konqueror has an undo option).. so i can't call it 'accidentally' but a 'dumb mistake'...i suppose that it's better that way, what if i was trying to rename my 'rom' dir?