Duplicate songs in the Music Library

Here is my problem: I have lots of music in my HD and I have imported
it to MS Media Player but there are a great number of duplicate songs
that are in my Music library. Is there any way of getting rid of
duplicates other than manually going thru all the play lists or the
music library and deleting them. I use both the Itunes player and the
MS Media Player because I have a couple of apple products along with
an Android Phone. Is there a single player out there that I can use
for both OSs and import all my music into it and have it recognize
duplicate mp3s? Thankyou in advance for replies and help. Bob