Hello. My name is David Martínez. I'm packaging rat 4.x. rat was in 
non-free, because of its license, but in fact only rat 3.x is affected by 
this more restrictive license, not rat 4.x. UCL claims that their license is 
open-source, but there's several bits that don't look clear, at least to me.

        Rat homepage is:

http://www-mice.cs.ucl.ac.uk/multimedia/software/rat/index.html

        Below is the content of 
http://www-mice.cs.ucl.ac.uk/multimedia/software/rat/license.html:

--------------
RAT 4 License

Copyright (c) 1995-2000 University College London
All rights reserved.

Redistribution and use in source and binary forms, with or without 
modification, is permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this 
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, 
this list of conditions and the following disclaimer in the documentation 
and/or other materials provided with the distribution.
All advertising materials mentioning features or use of this software must 
display the following acknowledgement:
"This product includes software developed by the Computer Science Department 
at University College London"
Neither the name of the University nor of the Department may be used to 
endorse or promote products derived from this software without specific prior 
written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND ANY 
EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY 
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This software is derived, in part, from publically available and contributed 
source code with the following copyright:
Copyright (C) 1991-1993,1996 Regents of the University of California
Copyright (C) 1992 Stichting Mathematisch Centrum, Amsterdam
Copyright (C) 1991-1992 RSA Data Security, Inc
Copyright (C) 1992 Jutta Degener and Carsten Bormann, TU Berlin
Copyright (C) 1994 Paul Stewart
Copyright (C) 2000 Nortel Networks
Copyright (C) 2000 Argonne National Laboratory
Copyright (C) 1991 Bell Communications Research, Inc. (Bellcore)
Copyright (C) 1996 Internet Software Consortium.
Copyright (C) 1995-1999 WIDE Project

This product includes software developed by the Computer Systems Engineering 
Group and by the Network Research Group at Lawrence Berkeley Laboratory.

The WB-ADPCM algorithm was developed by British Telecommunications plc. 
Permission has been granted to use it for non-commercial research and 
development projects. BT retain the intellectual property rights to this 
algorithm.

Encryption features of this software use the RSA Data Security, Inc. MD5 
Message-Digest Algorithm.
-------

        I really don't know how to deal with MD5 and WB-ADPCM.

        One thing more: Do I need to subscribe to debian-legal? If not, please 
Cc: 
me replies of this mail.

        I'm in contact with the upstream authors, I can ask them some things if 
it's 
needed.

        Thank you very much in advance,


                David.
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