Explores the meanings that have been attached to the term "archival" and concludes that librarians participating in the national preservation effort use this term to mean permanent. Permanence is practically defined as storage for upwards of 100 years. Given this definition, the merits of microforms and optical disks as archival storage materials…

Considers the future of microforms by surveying the history of their use in libraries; reviewing the literature about them; and comparing them with electronic databases, full text delivery, and laser disks. It is concluded that microforms will continue to be the primary providers of significant but rarely used retrospective materials. (EM)

Explores the trends and current status of library use of microforms for the preservation and dissemination of research materials. A sampling of topics available on microform is provided, and a directory of the publishers mentioned is included. (CLB)

Discusses the need for user oriented optical storage systems to deal with information storage in offices, and describes the Megadoc system. The features described include hardware configurations, microcomputer applications, the ability to read microfilm or microfiche documents, equipment standards, and current systems software. (CLB)