Currently Being ModeratedMar 18, 2013 1:09 AM (in response to edward133)
How did you get the duplicates? Match does not create duplicates from your library. Your library is scanned and at the end of the process, your tracks will show an iCloud status of Matched, uploaded, purchased or ineligible.
What is the iCloud status for duplicate tracks. Do any of the tracks have download icon in the cloud column? Do they appear as duplicates on your iOS device?
Where is your library - on computer or external drive?