I'm looking for a free shredder program for my mac, I read recely that when you delete files from the Trash bin it's not really deleted, OSX just "forgets" where it is.... wish sounds alot like windows to me. I recently started to use this program Permanent Eraser which claims to do the 35 pass shred aka Gutmann and i like it.. but now what about the old files that OSX "forgotten the location" ? How do i get these shredded and removed forever! I'm planning on giving my Mac to a friend, i know the OSX disc came with a shredder thingy, but that wipes the entire HDD, i'm giving my Mac with the software's i have installed to a friend. Any suggestions on a OSX app, that can shred the free HDD space and also get rid of the "forgotten" files locations?