ZIPFILE DUPLICATE CHECKING SYSTEM (ZDCS)  Ver. 2.0
              Copyright (C) 1991, 1992  Michael W. Cocke
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USING ZDCS WITH CD-ROMS

CD-ROMs are becoming more popular with sysops as a cost-effective way
of making large collections of shareware and public domain software
available to their callers for downloading.  But because a CD-ROM can
contain so many megabytes of files, you might think it difficult to
keep track of all the files and prevent any duplicates from being
added to the collection.

ZDCS provides the solution.  It serves both the sysop putting a CD-ROM
online and the manufacturer preparing to master a new CD-ROM.


IF YOU'RE A SYSOP

Sysops can take advantage of the pre-built ZDCS 2.0 databases
available for many of the most popular CD-ROMs.  You'll find them
available for individual download on The Hacker Central BBS, along
with the merge utility package Z2-DBMG.ZIP.  Inside that ZIP package
is the merge utility ZDCSDBMG.EXE and a detailed, step by step
explanation of how to merge your existing ZDCS database with any of
the pre-built ones.  It's a simple operation and much faster than
creating a new database from scratch, but we've taken the chance on
insulting your intelligence by laying out all the steps for you
anyway.


IF YOU'RE A CD-ROM MANUFACTURER

CD-ROM makers can use the database build feature of ZDCS to create a
database of the file collection before it goes for final mastering.
Then you can use the database report generator to identify any
duplicates in the collection.  This gives you an easy way to clean up
the files and assure your customers of a high quality collection of
files.  In fact, we encourage you to put a ZDCS 2.0 database right on
the CD-ROM for your customers' convenience.


FREE REGISTRATION

To make the use of pre-built databases even more attractive, we are
making the following two offers, good through the end of 1993:

1. If you create a ZDCS 2.0 pre-built database for a commercial CD-
   ROM that we don't already have in our collection on The Hacker
   Central BBS (and that isn't supplied right on the CD-ROM), we will
   trade you a full ZDCS registration for a copy of that database, to
   make it available to other ZDCS users.

2. If you master a new CD-ROM and you put the ZDCS 2.0 pre-built
   database for that CD-ROM right on the disk, we will give you a
   full ZDCS registration when you notify us of the details (CD-ROM
   name, company name, contact information, and expected release
   date).

If you have any questions, give The Hacker Central BBS a call.  You
can browse the list of pre-built CD-ROM databases to see which ones
are already completed.  You can even leave us a message in the ZDCS
support conference to discuss "reserving" a CD-ROM for which you are
creating the database.

CD-ROMS are just one more reason why ZDCS is *simply* the best zipfile
duplicate checking system.