[cc-metadata] non-web embedding revisited
Lucas Gonze
lgonze at panix.com
Fri Dec 23 17:04:42 EST 2005
I'd like to suggest an alternative (complementary, not exclusive) approach
-- embed a unique and canonical ID (preferably a URL) and do the license
hacking via web tools which annotate that ID. This moves as much
functionality as possible out of media file formats, which are an endless
nightmare, and allows third parties to to create lookup infrastructure in
a decentralized way.
On Fri, 23 Dec 2005, Mike Linksvayer wrote:
> A long time ago there was some discussion concerning license metadata in
> files disassociated from the web, eg
> http://lists.ibiblio.org/pipermail/cc-metadata/2003-June/000123.html
>
> In retrospect the conclusion to shove a simultaneously semi human
> readable and semi machine parseable statement in the "TCOP" field was
> dumb. It isn't very readable, isn't exposed by programs if it were,
> isn't translatable, and is hideous from the perspective of machine
> parsing.
>
> We're going to release recommendations for embedding similar web-backed
> notices in several other file formats over the next year, so now may be
> a good time to correct the original mistake, create a new recommendation
> for MP3/ID3, and replicate that recommendation elsewhere. (There isn't
> that much properly marked content out there using the existing
> recommendation, and only a few programs that look for compliant embedded
> metadata, all of which I suspect would be glad to comply with a saner
> standard.)
>
> The new recommendation would probably be to use two fields specifically
> intended to contain URLs and only URLs. For ID3v2, those might be
>
> WCOP (pointing to a license URL)
> Definition: http://www.id3.org/id3v2.3.0.html#WCOP
> Example value: http://creativecommons.org/licenses/by/2.0/
>
> WOAF (pointing to a web page describing a file, potentially including
> license information/metadata)
> Definition: http://www.id3.org/id3v2.3.0.html#WOAF
> Example value: http://example.com/a_song_sung_by_me.html
>
> Note that these map to current use of licenses and metadata on web pages
> -- the license notice points to a CC license URL, and describes the
> current page (the current page is its own "official page").
>
> Comments? Suggestions for implementation in other formats? I'm
> particularly interested in EXIF, MP4/QT and OGG at this point.
>
> --
> Mike Linksvayer
> http://creativecommons.org/about/people#21
>
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> metadata at creativecommons.org
> http://lists.ibiblio.org/mailman/listinfo/cc-metadata
>
>
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