John, Could you please summarize any responses you receive for the list? In addition to the standards you mention, I also wonder about ISAD-G and other international OAI compliant standards. Thanks, Anna Anna M. Schein, University Librarian and Associate Curator, West Virginia and Regional History Collection West Virginia University Libraries P.O. Box 6069 Morgantown, West Virginia 26506-6069 Tele: (304) 293-4040 x 4065 Fax: (304) 293-6638 >>> [log in to unmask] 01/24/06 5:12 PM >>> I am seeking opinions in the matter of relatedencoding preferences. I'm interested in hearing justifications for mapping to either Dublin Core or MARC (or mixed practices using both). I understand the potential for using mapping to MARC for the creation of catalog records. What do people see as the purposes of mapping to Dublin Core? Do you consider it more far-reaching in its potential for future harvesting? If so, how? The EAD Cookbook recommends setting mapping to MARC21 in <ead> but the RLG guidelines seems to suggest that Dublin Core be used for <eadheader> and MARC for <archdesc>. John Bewley Music Library University at Buffalo, The State University of New York 716 645-2924 Ext. 1446