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…

Compares two approaches to document delivery and storage--microform and CD-ROM--in terms of storage capacity, accessibility, production, and cost considerations. Strengths and weaknesses of each medium are noted. It is concluded that libraries should select, integrate, and explore the different features of both technologies. (12 references) (MES)