Hi,
There is a question about how to detect invalid permutations of MARC field/subfield/indicator with a web application, for details see: http://libraries.stackexchange.com/questions/1006/how-to-detect-invalid-permutations-of-marc-fields-subfield-and-indicator I guess that someone more familiar with MARC processing can easily provide a code snippet to analyse MARC data based on a set of reports/rules, as described in the question. Cheers Jakob P.:S the Question & Answer site http://libraries.stackexchange.com is part of the successful Stack Exchange Network, you are also invited to ask your questions there and to select interesting questions and answers by voting! -- Verbundzentrale des GBV (VZG) Digitale Bibliothek - Jakob Voß Platz der Goettinger Sieben 1 37073 Goettingen - Germany +49 (0)551 39-10242 http://www.gbv.de jakob.v...@gbv.de