Inorganic Crystal Structure Database at the Institute of Physics
Official site:
http://www.fiz-informationsdienste.de/en/DB/icsd/index.html
Orders and price list:
http://www.iucr.org/iucr-top/docs/icsd.html
Institute of Physics has a licence described above as
"CD-ROM Windows version for one individual unit of an academic institution".
Latest update: December 2003, 73519 compounds