Development of Creative Commons licenses

[Kuno Woudt <kuno AT frob.nl>]

Hello,

On 07/04/12 15:07, Francesco Poli wrote:
> On Fri, 06 Apr 2012 14:29:04 -0500 Christopher Allan Webber wrote:
> >   - If I release a PNG, should I have to release my accompanying GIMP or
> >     Photoshop files?
>
> If you want to release the source code (and I really encourage to do
> so, in any real case), you have to release whatever form you prefer
> for making modifications to the PNG image.
>
> >     Those are the optimal verisons, but what if I
> >     didn't keep them?
>
> In that case, you clearly showed that you do not regard them as
> preferred form for making modifications to the image: as a consequence,
> the source is whatever form you prefer for making modifications to the
> image, *among* the forms you kept around.

Wouldn't someone always be able to claim this?  Effectively making a
source-requirement clause a no-op, because a publisher can always claim
that whatever they distributed is the preferred form.

-- kuno.