If you've used the Shift-View > Show Exact Duplicates feature you want to delete all but one of each repeating group. It becomes more complicated because sometimes there are two links to a single file, other times there are multiple files on the hard drive with the same audio content and tag properties. Depending on which it is you either do or do not want to delete the file when deleting the entry from the library.
See this thread which discusses some causes of duplicates, gives a strategy for a manual removal and explains the ideas behind a script called DeDuper for doing it automatically.
Tunstall, Staffs? I used to live in Market Drayton...
tt2
Message was edited by: turingtest2