CloneMaster will clean your hard drive of duplicate files that are just wasting space. CloneMaster searches for TRUE duplicate files (byte for byte). It does not find duplicates by filename, date, size or CRC. It does so by comparing the file data itself ensuring 100% accuracy. CloneMaster uses a special algorithm that makes the scan extremely fast. It is as fast as your drives can deliver. CloneMaster let you find duplicates in multiple paths, backups drive, drives (Hard drive, Floppy, USB Stick, Jaz, ZIP, CDROM, DVD, or Network drives). CloneMaster handles 64-bit file size. All of the duplicate files are listed in a single list to quickly select those to delete, you can easily select the old duplicates to delete. It also finds zero length file (empty files) and empty folders. The system context menu (using the right mouse click) allow you to preview files, view the properties, or delete. Version 4 includes new user interface, and adds new file and folder handling features.