discussion of the Creative Commons Metadata work

[Mike Linksvayer <ml AT creativecommons.org>]

Chris Snyder wrote:

> Wow, thanks! That was very informative, and timely as I'm starting 
> work on an audio-blogging project into which I hope to weave CC 
> license support.

Thank you!  Don't hesitate to post questions or comments as you 
implement your audio-blogger.  Feedback from early adopters/impmentors 
greases the skids for everyone who follows. :-)

> But since I already run an imageblog with CC license support, I have 
> to ask: is there are recommended field for license data in JPEG, PNG, 
> and/or GIF images? A while back I was considering ways to put it in 
> the HTTP headers that would be served with each image, but it makes 
> more sense to embed a license-info URL in the image itself.
>
> So... IPTC? EXIF? Is it possible to agree on and publicize a standard?

Yes.  I'd like to publish recommendations for any format that supports 
embedded metadata.  I'm mostly ignorant concerning image metadata, but I 
have a hunch we'll want to consider XMP 
<http://www.oasis-open.org/cover/xmp.html>, which is an RDF application 
and covers many file formats.

Screenshot at <http://www.pixvue.com/imagePropertiesHelp.html> indicates 
the existence of  'Rights Management/WebStatement' and 'Rights 
Management/Copyright' properties, which we could use for the same 
purposes as WCOP and TCOP MP3 ID3v2 tags respectively.  I'd love to have 
someone do more research and formulate a draft recommendaton.

Mike