On 25/08/2014, Thomas Stern wrote:

> Looking further:
>  I think the NAXOS designation on some vendor sites is an error.
> There are 2 EMI sets, one from 2009, and the new one which uses
> original tapes, and removes some of the imperfections.....
>  Thomas.

Yes, Naxos have separate issues of a dozen or so operas, but I see no
box set. However, the European label Documents does have a Callas box called
"30 Complete Operas", on 64 CDs.

These like the Naxos will be transfers from vinyl. 

So that leaves three boxes: Documents, old EMI, new remastered Warners.

Don Cox
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