This annual directory includes names, addresses, and telephone numbers of major firms involved in the optical information field. Four major product groupings are represented: (1) interactive video; (2) WORM and erasable optical disks; (3) CD-ROM technologies; and (4) optical memory cards. An overview of the past year's developments in this field…

This continuation of the previously published four part directory reports information on several additional laserdisk databases and provides updates on some of those included in the original listing. Included in the product descriptions are producers; compatibility; type of laserdisk; software; interface with magnetic media; conditions of usage;…