Compares five services that offer mediated access to the Monthly Catalog of United States Government Publications--Auto-Graphics, Brodart, Information Access (two services), and LSSI--on 14 points ranging from basic cost and type of media (microfiche, microfilm, laser optical disk, optical disk) to special features or enhancements. (CLB)

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)

Compares compact discs (CD-ROMs) and online services in terms of cost of information delivery; system advantages and disadvantages; future possibilities; and role in the National Information Infrastructure. Analysis reveals that CD-ROMs have the lowest information delivery cost and are endorsed by the marketplace as a cost-effective way to deliver…

Describes and compares several exchange/transfer formats used to upload records into software host programs, including unstructured or plain ASCII; fixed field; delimited ASCII; tagged; MARC (Machine Readable Cataloging); and graphic. It is concluded that CD-ROM producers should strengthen the built-in output management of programs and offer…

Examines the cost effectiveness of using CD-ROM encyclopedias in school libraries; finds print encyclopedias to be cheaper, but advocates the use of both. Sidebars include price comparisons of popular print and CD-ROM encyclopedias. (AEF)

This research examines change agents' and opinion leaders' perceptions of CD-ROMs, online databases, and print sources in the academic library environment. The change agents and opinion leaders are librarians who advocate and influence the purchase decisions regarding computerized information systems. From a survey of librarians' perceived…

Outlines evaluative criteria and compares optical data disk products used in library technical processes, including bibliographic records for cataloging, acquisition databases, and local public access catalogs. An extensive table provides information on specific products, including updates, interfaces, edit screens, installation help, manuals,…

CD-ROM periodical indexes are becoming increasingly tailored for specific age ranges and are also providing access to full text. Two charts separate several full-text CD-ROM products by intended audience (middle school versus secondary school students) and compare costs and features. Tips are provided on assessing institutional needs and…