Development of Creative Commons licenses

[wolfgang wander <wwc AT lns.mit.edu>]

drew Roberts wrote:
> [...] we see exactly this situation 
> as asymetrical. And that the license provides little value ot the person 
> using the BY-Sa license in this instance.

This asymmetry is a very good point and the reasoning for it should probably
be expanded a bit here:

For a text, copying it verbatim does not invoke the derivative clause but
text stays text and is then fully available to any user downstream as if
it had been just republished on a different medium or host.

For a photo, without invoking the derivative clause you can: crop,
shrink, transform its color space, desaturate and raster-print it.  A user
downstream will most likely get a very different representation of
your original work.

Furthermore it strikes me as odd that the time syncing of movies and
sound invokes the derivative clause while the semantic syncing
of photographs with text (in heavily modified: resized, recropped,
desaturated) form does not.

   Thanks!
           Wolfgang