[OSM-legal-talk] License Cut-over and critical mass

Rob Myers rob at robmyers.org
Sat Jul 24 17:33:27 BST 2010


On Sat, 24 Jul 2010 12:03:17 -0400, Anthony <osm at inbox.org> wrote:
> 
>As I've asked
> several times now, and never gotten a response, what stops someone from
> taking a Produced Work released under CC-BY and extracting the data back
> out
> of the Produced Work, thereby obtaining the data under CC-BY.

Presumably the same thing that prevents the copyright on a DVD you copy
off a TV screen from evaporating when you burn it back to DVD. (I mention
copyright as BY is a copyright licence.)

BY-SA is a more interesting case as the derivative work must also be
covered by BY-SA.

- Rob.




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