Chiumiento,
I have used Easy Duplicate Finder, the program works. I read into it, it can scan your files differently.
If I recall it does scans by CRC32 Checksum, Filename Only, Byte-by-Byte and ID3 Tag Scans (mainly for Mp3 enthusiasts.)
Program worked well for me, and had a lot of useful options.
I picked it because it had the feature that you could send the duplicates to the recycle bin or just delete them right away, which might be also useful for you.
For anyone else reading this thread, here is the link for more information (at least the page I found most informative.)
Find Duplicate Files on your PC
Homepage
http://www.easyduplicatefinder.com