It may be time to contact a group like this: 
especially since MPD is being broadly "exploited" improperly. My understanding 
is that there are ways to use proprietary closed source code with open source 
code but it must be done in a specific way. I would imagine ROON and MQA could 
be employed in GPL compliant ways. IBM, Cisco and Nvidia have figured this out 
so its not impossible. Qualcomm has to work with GPL code all the time. They 
have more lawyers in California than any other organization because of these 

Cary Audio is in over their heads on this. I'm sure the software guys are not 
employees but an outside group he has hired. Cary's main business is tube amps. 
Software is not their strength. I'm sure there are other small audio companies 
doing similar. A wake up call to all these guys is overdue. I would expect some 
group like the one above could help with the message. It seems they have 

-----Original Message-----
From: mpd-devel [] On Behalf Of Max 
Sent: Thursday, February 22, 2018 11:43 PM
To: Moritz Molch <>
Subject: Re: [mpd-devel] Request for GPL source code of

On 2018/02/23 01:11, Moritz Molch <> wrote:
> The only question is, whether a judge forces him to give you the 
> sources or if he does it on his own.

I don't think so.  Cary Audio have put themselves in a conflict situation; they 
have violated everybody's copyright.  But they can't be forced, for example, to 
give me the Roon or MQA source code, because they don't own it.

No judge can force them to give me code they aren't allowed to give away.  For 
Cary Audio, it is impossible to obey the GPL, and thus the copyright violation 
cannot be resolved by coming into GPL compliance.
They can only recover from the situation by making an agreement with the 
copyright holders whose rights they violated.  Billy Wright is a top-level 
manager, he knows this, but he's not interested in resolving this properly; he 
wants the problem to just go away, to just disappear.

Yes, in the Cary Audio case, I have already understood that it is impossible 
for them to publish the Roon/MQA source code.  But at this stage, that's not 
what I'm after.

Cary Audio didn't even publish the sources of code they themselves wrote, of 
which they own the copyright.  The source tarball I got was heavily redacted, 
and lots of Cary Audio code was removed.

I think it is obvious that I cannot forgive them with this kind of behavior.

> This verdict against Skype Technologies might be of interest
> (German):

This is mostly about formal stuff (whether Skype's formal license declaration 
is enough), but I don't want to go after Cary Audio for formal mistakes.  These 
don't matter much for me.  I only want them to respect the spirit of the GPL, 
which is: make the full source code available.
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