Short description of ShredIt 5.0: Protect your privacy with this easy to use hard drive cleaner and file shredder that will secure delete data so it can't be recovered. Whether you want to erase a hard drive before disposal or wipe a file, ShredIt for Mac OS 8 and 9 is the Mac privacy software for the job. It will shred a file, clean disk free space, a hard drive and even a floppy disk. It comes with step-by-step instructions, built in safety features, and DOD compliance.