Many good programs for finding duplicate files - based on file name, size, and checksums - but finding duplicate songs can be trickier. After all, if you have the same record. Mp3 and. M4a formats, you have duplicate songs not to repeat the files.
So you need to search by metadata - the extra information that defines the content of a particular file. You need a program that can match the song with the same title and the same artist (because of smash mouth " I am a believer "is not a duplicate of the Monkees' original.)