May 23rd, 2002

Mr. Roberto Amorim
RareWares
rja00@inf.ufpr.br

RE: Advanced Audio Coding (AAC) Technology

I am writing to inform you that Dolby is the licensing administrator 
for the new compression technology called AAC. We have searched your 
web site at www.inf.ufpr.br/~rja00/ and discovered you are offering 
unlicensed AAC software. This unlicensed software infringes patent 
rights belonging to AT&T Laboratories (of Florham Park, New Jersey), 
Dolby Laboratories (of San Francisco, California), Fraunhofer 
Insititute (of Munich, Germany), and Sony Corporation (of Tokyo, 
Japan). These companies take the unlicensed use of their technology 
very seriously, and are presently in the process of communicating 
with each of your software developers. Our goal is to provide them 
inexpensive licensing arrangements so that they can continue to 
utilize AAC technology. At present, however, none of your software 
is licensed to use AAC. This illegal distribution is generating 
liability.

Accordingly, please remove all software from your website regarding 
AAC technology. We want to thank you very much for your cooperation 
in this matter, and we apologize for the inconvenience caused. We'd 
appreciate a brief email or call from you confirming your removal of 
the binaries. We will promptly let you know when your linked software 
become licensed so that you can re-instate the software if you still 
desire to do so.

Should have you have questions please feel free to contact me at 
415-558-0792 or aacla@dolby.com.

Sincerely,

Christina L. Bonner
Dolby Laboratories Licensing Corporation