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Subject: discussion of the Creative Commons Metadata work

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  • From: Lucas Gonze <lgonze AT panix.com>
  • To: Mike Linksvayer <ml AT creativecommons.org>
  • Cc: cc-metadata AT lists.ibiblio.org
  • Subject: Re: CC and SMIL
  • Date: Mon, 20 Oct 2003 22:14:02 -0400

Hey Mike,

From my own perspective the problem with CC was that the attribution license doesn't say *how* you should attribute. It's more important on a functional level to know the parentage of a playlist than to know that angel22536@aol wrote it. That's the difference between the hand rolled license and CC attribution-share-sharealike: the hand rolled license requires that you do attribution by specifying the URL of every parent.

Notice an quirk of the application requirements here. The problem to solve is that users want to add or delete songs with shared playlists just like with hoarded ones, so they have to have the right to modify. At the same time there can't a single source for each playlist; it's not a canonical object that belongs in source control. Users will constantly be forking, and that means that identity for the sake of attribution is hard to do.

That said, I've started using CC in my newest SMIL files. The template for my own new playlists is something like:
<!--
url: http://somedomain/someplaylist.smil
license: http://creativecommons.org/licenses/by-sa/1.0/
author: some guy
parent: http://someotherdomain/someotherplaylist.smil
-->
<smil>
<body>
<seq>

<!-- my own addition -->
<par>
<audio src="htp://bla/bla.mp3"/>
<img src="http://bla/bla.gif?url=http://bla.com&target=_browser"; fill="freeze" />
</par>

<!-- song in the previous playlist -->
<par>
<audio src="htp://bar/bar.mp3"/>
<img src="http://bar/bar.gif?url=http://bar.com&target=_browser"; fill="freeze" />
</par>

</seq>
</body>
</smil>

- Lucas

On Monday, Oct 20, 2003, at 17:48 America/New_York, Mike Linksvayer wrote:

Lucas Gonze, who has popped in on this list before, has been blogging a lot about SMIL playlists recently. I haven't ever been into playlists, but <http://www.gonze.com/index.cgi/2003/10/13#10-12-3> pointing at <http://www.daysofleisure.com/blog/pride_and_envy_and_freedom.smil> really caught my attention for two reasons:

* It demonstrates client-side remixing -- the end user hears a remix, specified by the SMIL file, but no remix is published in the form of a mp3 or similar -- the "sources" are untouched.

* More apropos to this list, I read (excerpt from above SMIL)

<!--
This playlist is free to use and modify in any way you want, except that
the modified version must include this notice and must include a link
to the version of the playlist that you based your modifications on.
author: Jim Nachlin
self: http://www.daysofleisure.com/blog/pride_and_envy_and_freedom.smil
parent: http://gonze.com/playlists/pride_and_envy_lounge.smil
parent: http://www.lessig.org/content/audio/
parent: www.illegal-art.org/audio
-->

Now this is cool because it grants the user permission to use and modify the playlist and charts its ancestry. But it would be even cooler if this were done using a CC license and RDF.

I don't know much of anything about SMIL, but I note that it does include a specification for publishing RDF/XML metadata inline <http://www.w3.org/TR/smil20/metadata.html#edef-metadata>.

It would be cool if someone did some research and cooked up some examples of including CC license RDF in SMIL for the purposes of denoting that the SMIL playlist itself is published under a CC license or that individual components of the playlist are CC licensed. Even better if you can use dc:source to specify parent playlists/works.

Anyone want to do this or help with the wording to make it a new tech challenge <http://creativecommons.org/technology/challenges>?

Thanks!

(I note that SVG has a similar metadata capability <http://www.w3.org/TR/SVG11/metadata.html>.)

--
Mike Linksvayer
http://creativecommons.org/learn/aboutus/people#21

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