In preparing to do another batch upload of data, we ran a test import of authorities, and ran a check for duplicates. This returned some unexpected results. There are duplicates already in Koha. I currently have it set to allow the BiblioAddsAuthorities (on the theory that we're only adding downloaded records from reputable sources so the terms and names should be ok). However, when we download a record and save it, it creates new authority records apparently without checking to see if one already exists (or if it is checking, it's doing it invisibly and failing to match on the 100 fields). Now I've got a batch of duplicate authorities, linked to biblios. It is rather tedious to go through manually and change them one by one and then wait for the zebra to update so I can go back and delete the extraneous ones. Two questions: a) Is there an easy(ier) way to fix the existing duplicates? b) How can I prevent the creation of duplicates from happening? I could switch off the BiblioAddsAuthorities, but my colleagues will grumble. . . -- Elaine Bradtke Data Wrangler VWML English Folk Dance and Song Society | http://www.efdss.org Cecil Sharp House, 2 Regent's Park Road, London NW1 7AY Tel    +44 (0) 20 7485 2206 ext 36 -------------------------------------------------------------------------- Registered Company No. 297142 Charity Registered in England and Wales No. 305999 --------------------------------------------------------------------------- "Writing about music is like dancing about architecture" --Elvis Costello (Musician magazine No. 60 (October 1983), p. 52)