Hi... Just a quick one for everyone because I've been screwing around and trying to delete my itunes duplicates for 2 weeks without a solid answer on any blog... Anywho... Here is what the surrounding story is and how I fixed it...
WHAT HAPPENED:
I bought a new computer...
I saved my music folder along with my ITUNES library files to a separate HD...
I plugged that into my new computer...
Uploaded the files..
Launched ITUNES...
BOOOM
6500 Duplicates
HOW I FIXED IT:
I looked in one of the folders where a duplicate came from (an album folder) I found a .M3U file, found this in a bunch of the cases.
I searched for *.M3U and deleted everything I found.
Then for ones I did not find a .M3U file for I just searched for the song, found it in 2 separate locations, one of which was some duplicate ITUNES directory that must have saved and been copied over.
I deleted that folder.
Went back to the ITUNES folder, deleted the files, relaunched ITUNES
Boom... Fixed... Good luck!