Productive use of digital imagery for preservation requires a reconceptualizing of preservation principles in a volatile, standardless world. Concept of managing continuing access in the digital environment rather than focusing on the permanence of the medium and long-term archival standards developed for the analog world. Transition period: How long and what to do? * Redefine "archival." * Remove the burden of "archival copy" from paper artifacts. * Use digital technology for storage, develop management strategies for refreshing medium, hardware and software. * Create acid-free paper copies for transition period backup until we develop reliable procedures for ensuring continuing access to digital files. SESSION IV-D Stuart WEIBEL The Role of SGML Markup in the CORE Project (6) The emergence of high-speed telecommunications networks as a basic feature of the scholarly workplace is driving the demand for electronic document delivery. Three distinct categories of electronic publishing/republishing are necessary to support access demands in this emerging environment: 1.) Conversion of paper or microfilm archives to electronic format 2.) Conversion of electronic files to formats tailored to electronic retrieval and display 3.) Primary electronic publishing (materials for which the electronic version is the primary format) OCLC has experimental or product development activities in each of these areas. Among the challenges that lie ahead is the integration of these three types of information stores in coherent distributed systems. The CORE (Chemistry Online Retrieval Experiment) Project is a model for the conversion of large text and graphics collections for which electronic typesetting files are available (category 2). The American Chemical Society has made available computer typography files dating from 1980 for its twenty journals. This collection of some 250 journal-years is being converted to an electronic format that will be accessible through several end-user applications. The use of Standard Generalized Markup Language (SGML) offers the means to capture the structural richness of the original articles in a way that will support a variety of retrieval, navigation, and display options necessary to navigate effectively in very large text databases.