This article is from the storage FAQ part1, by Rodney D. Van Meter with numerous contributions by others.
Holoplex is a startup company doing holographic memories. Info on the web at http://www.holoplex.com/holoplex/. They reportedly have a 100-image store available as a product. (rdv, 96/7/23) Tamarack Storage Devices, Inc, a spin-off from Microelectronics and Computer Technology Corporation (MCC), is developing with Projectavision Inc. to produce a product with ten times greater storage densities than magnetic and 10 to 1000 times faster than floppies, tapes, and CD-ROMS. First products expected first quarter 1994. (Ref: MCC Collagorations Newsletter, Volume 3, No. 1; Spring 1993) (email@example.com) Note: obviously Tamarack hasn't changed the storage world yet; anybody know how they're doing? They were awarded another $10.7M by ARPA in 1995 for continued research, but I can't even find a web page for them. (rdv, 96/7/23) Also another report of experiments at Stanford recently (8/94). Scientific American in the Nov. 95 issue reportedly has an article about holographic storage, but I haven't tracked it down yet. BYTE Magazine - April 1996 Good Cover Story on "Holographic Storage" The trade journal "Data Storage" for May/June 1996 had an article on holographic storage. Reportedly there is work going on at Georgia Tech on 3-D liquid crystal data storage, producing a possible gain of 3 orders of magnitude. (rdv, 1996/3/29, from HPCWIRE)