Duplicate File Detective has a name that tells you everything. This program can detect all the duplicated files on your hard drive, and process them through diverse options: move them to another place, file them in a ZIP, or directly delete them from the drive.
The program uses a powerful multithread scanning engine with support for simultaneous multirouting, both locally and on a LAN, The filtering options can include or exclude determined file types. The results are presented in a list, on which you can manually mark the objects you want to process. The additional characteristics of Duplicate File Detective include support for command line, and a hash calculator with support for CRC32, Adler32, MD5 and SHA1.