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)

Describes a study that compared retrieval obtained by searching hardcopy and online indexes. Measures of comparison were recall and precision, user preferences, and the amount of effort required to complete the search. The findings indicate that neither method offers an overall advantage and suggest that both search modes should be maintained. (12…