[uf-new] Separating File Content from File Format
scott at makedatamakesense.com
Thu Apr 5 13:35:22 PDT 2007
On Apr 5, 2007, at 2:56 PM, Charles Iliya Krempeaux wrote:
> Hello Scott,
> You can find more info about Content Types here...
> Section 14.17 of RFC 2616
Hmm, reading that gives me the impression that parameters are defined
when media types are registered, and aren't something we can add to
suit our needs. That links to this:
Which says "The presence or absence of a parameter might be
significant to the processing of a media-type, depending on its
definition within the media type registry."
So the media type registry determines the significance of parameters
for that media type. In the text/html registry , for example, I
see "Optional parameters: charset". But in the audio/mpeg registry,
I see "Optional parameters: none". I couldn't find any discussion of
parameters specific to video/mpeg, but video/mp4  also says
"Optional parameters: none", as does video/quicktime . Microsoft
has, of course, used unregistered X- content types. So what exactly
does "Optional parameters: none" mean? It seems to suggest we don't
have the option of parameters on these content types, but maybe I'm
reading that too literally?
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