We are sorry, but due to a number of complaints about copyrighted materials
being included on the SIG tapes, they are currently not available here. Once
we receive sufficient documentation and liability indemnification, the tapes 
will return.

  In the meantime, you may find the following link (to the official DECUS/
Encompass Library page) helpful: 

http://www.decus.org/encompass/software/index.shtml