Describes how concern about the quality of microfilm being purchased by the Library of Congress Photoduplication Service led to a project to bring together the various standards covering microfilm for permanent records, and to the publication in 1964 of Specifications for Library of Congress Microfilming. (two references) (CLB)

Describes the following steps in CD-ROM production: (1) information base creation; (2) data preparation, conversion, and verification; and (3) indexing and premastering. Cost factors for each step and overall trends in CD-ROM production costs are also discussed. (three references) (EA)