try clonespy http://www.snapfiles.com/get/clonespy.html
Do you often download files from the internet? Is your hard drive crowded with these files? Have you ever asked yourself which files you already downloaded more than one time? CloneSpy can help you saving hard drive space by detecting and removing duplicate files. CloneSpy can find files that have exactly the same contents regardless of their name, date, time and location. Moreover Clonespy is able to find files that are not exactly identical, but have the same filename. Perhaps you have different versions of a file and you want to find all of them and remove the older versions. In addition, the program can also find zero lenght files. You have the option to decide what you want to do with the found duplicates, CloneSpy shows you the details of each file (and it`s proposed duplicate) and allows you to either keep, move or delete.