Best Duplicate File Finder Software

Hi need to find duplicate files like , songs, pictures , etc and need to delete them.
Answer #1
http://lifehacker.com/the-best-duplicate-file-finder-for-windows-1696492476
Answer #2
I found Araxis Merge on this site in apps section. Worked perfect for me. Good luck!
Answer #3
CCleaner can do it too..