Re: public domain to GPL?

[amicus_curious]

"Alexander Terekhov" <terekhov@web.de> wrote in message 
48CA9B83.3349C96B@web.de">news:48CA9B83.3349C96B@web.de...
> >                                   You can assert a copyright on the work 
> > as a
> > whole where you have made some unique changes to the original expression,
>
> Wrong. You can assert a copyright on some unique changes to the original
> work but that is less than the work as a whole (new expression +
> original expression).
I agree.  My intent was to say that a work that was otherwise public domain 
and extended in some useful way cannot be copied as a whole since part of it 
contains new, copyrightable material.  The copyright only pertains, as you 
point out, to the new part, but putting the two together is protected.