discussion of the Creative Commons Metadata work

[Mike Linksvayer <ml AT creativecommons.org>]

Bardo Nelgen wrote:
> If they use it as default mehtod for embedding XMP - why not make it 
> default for CC-Licenses either ?

XML content in a <script> element doesn't validate unless wrapped in 
comments, and those will still be lost to XHTML apps not looking for 
data in comments, as I understand it.  See for example 
<http://lists.w3.org/Archives/Public/public-rdf-in-xhtml-tf/2003Jun/0035.html> 
and previous messages in the thread.

At this point I don't think we'll change the default for publishing CC 
metadata until the W3C comes up with a RDF-in-XHTML recommendation.  Ben 
Adida, CC's W3C rep, is staying on top of that process.

> By the way: Does anyone know an XMP-reader, which is already capable of 
> parsing nomal, valid RDF, which contains other tags (e.g. CC) in 
> addition to the XMP values ???  :-|

An XMP reader (for example whatever is built into Photoshop CS) can read 
RDF with CC properties.  See 
<http://creativecommons.org/technology/xmp-help#cc-panel>, which 
demonstrates this (it displays the value of cc:license).  XMP can handle 
arbitary properties within the subset of RDF it supports -- that's the 
eXtensible bit.  It may even parse arbitary RDF, ignoring unspported 
bits -- http://partners.adobe.com/asn/tech/xmp/pdf/xmpspecification.pdf 
says rdf:ID and a few others will be ignored, not cause failure.

However, I don't know of any code for a stand-alone XMP reader.  You may 
as well use a standard RDF toolkit.

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