NLM has discovered that due to an unexpected programming setting, the 040 $e in our bibliographic and authority records was being stripped in the distribution of our RDA authority and CIP records, being created as part of the national testing. Therefore users may be seeing what appear to be unusual hybrid records with Leader byte 18 of "i", and other fields associated with RDA (namely 336, 337, and 338 in bibs) but lacking 040 $e rda. In some instances when the records have also gone through LC CIP processing, LC has changed the leader byte to "a", but left the other RDA fields in the records.
We have identified the problem records and are working with LC and OCLC to fix the errors, and have adjusted the programming on our end to avoid this problem in the future. My apologies for any confusion this may have caused. Diane Boehr Head of Cataloging National Library of Medicine 8600 Rockville Pike, Room 1N11 Bethesda, MD 20894 301-435-7059 [email protected]
