A while ago, acdb stopped downloading CD informations for me.  I have only just
got round to investigating why this might have happened.

It appears that when IDs are requested from CDDB, the client has to send a
string identifying which client it is.  acdb was sending the string "acdb 1.0". 
The server was responding with "unauthorised client".  It appears that if you
want to access the server, you are basically forced to register your product
with Gracenote.

With a bit of low-level hex editing, I changed acdb so it masquerades as a
different client.
It now works again.

PATCHING ACDB 1.1
Simply run the supplied installer script, and point it towards the directory
which contains the acdb executable.  It will rename your existing acdb program
as acdb_old before doing anything, so if acdb refuses to run afterwards, the
patch probably hasn't run.  The patched version has the version number bumped to
1.2, in order to tell the difference.
If it doesn't patch, you may need to copy gpatch from this archive into c:. 
Ensure you are patching acdb 1.1, it won't work on any other version.

You may also need to change the server in the tooltypes to us.cddb.com, as
www.cddb.com no longer works.  Note that addb_hosts is not patched and no longer
works.

BONUS TRACK I have included a small ARexx script called "Download CDID", which
is intended to be used with ACDPlay.  It is ridiculously simple, but you wil
need to edit it to point to the correct path for acdb.  Running it simply
downloads the ID for the CD you have in your CD-ROM drive.

DISCLAIMER I accept no responsibility for any damage or loss of data caused by
the patched version of acdb or the isntaller script.  gpatch and the original
version of acdb are not the responsibility of the author of this patch.  This
patch is not by or official endorsed by the author of acdb - All use is at your
own risk.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 1837    2802  65.6% -lh5- cfe7 Apr 28  2001 Programming/Projects/acdb_patch.info
[generic]                  131     139  94.2% -lh5- ec85 Apr 28  2001 Programming/Projects/acdb_patch/acdb_patch
[generic]                 1114    2126  52.4% -lh5- 6ba8 Apr 28  2001 Programming/Projects/acdb_patch/acdb_pch.readme
[generic]                 1464    2579  56.8% -lh5- f95f Apr 28  2001 Programming/Projects/acdb_patch/acdb_pch.readme.info
[generic]                  135     171  78.9% -lh5- 3895 Nov  4  1999 Programming/Projects/acdb_patch/Download CDID
[generic]                11393   18480  61.7% -lh5- c9f1 Nov 18  1998 Programming/Projects/acdb_patch/GPatch
[generic]                  406    1081  37.6% -lh5- 569f Apr 28  2001 Programming/Projects/acdb_patch/install
[generic]                 1606    2236  71.8% -lh5- 6070 Apr 28  2001 Programming/Projects/acdb_patch/install.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         8 files   18086   29614  61.1%            Apr 29  2001