Hi, I have been trying a variety of techniques to swap data from a library specific field (we are using 900 to store legacy data) to the Koha items field (952). Specifically moving data from 900 sub 6 to 952 p (barcode, we are using a custom number in place of barcode) My problems are: 1. The MARC export is producing a file that has incorrect Leader data. I have verified this through two utilities which I have used before successfully with other marc files - Marcedit ( a free win32 app) and File_MARC (pear extension). 2. My next attempt was to try to directly edit the data in the Koha database. I was able to update items.barcode = marc_subfield_table.subfieldvalue with plain old sql. However it seems this data is only part of the story and I need to also update the marc_subfield_table(900 sub 6 to 952 p OR items.barcode to 952 p). I could not figure out which fields need which data to do this step and if this (marc_subfield_table) was the only other table that I needed to update. So to reiterate. Is there a known problem w/marc export? And Can someone help me w/the sql to create the necessary entries from items.barcode to the other marc related tables so that this data is visible throughout Koha. Many thanks, Tony