compared with
Current by Andrew Jackson
on Jan 05, 2012 16:18.

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{quote}
\[PT:...\] some formats (such as application/postscript) have version numbering conventions that are internal to the media format. Where such conventions exist, MIME does nothing to supersede them. Where no such conventions exist, a MIME media type might use a "version" parameter in the content-type field if necessary.
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(1) TYPE -- the general type or category of binary data. This is intended as information for the human recipient rather than for any automatic processing.

\[PT:...\]
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Finally, the standard allows for extension via shared but unofficial and non-standardised MIME types, prefixed with 'x-' (see section 5.1). And also vnd, which is in partnership or as orphan

This proposal builds on these three areas and extends them.
This proposal builds on these three areas and extends them to allow MIME types to become interoperable with PRONOM IDs or other fine-grained identifier schemes.

h2. Proposals

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A charset parameter is be used to indicate the character set of the file for text subtypes. The octet-stream subtype of type application is used to indicate that a body contains arbitrary binary data. One of the optional parameters for this subtype is type which is the general type or category of binary data. This is intended as information for the human recipient rather than for any automatic processing. A codecs parameter is used for audio and video media types to indicate the coder-decoder for encoding analog signals to digital and decoding digital to analog signals [PT:RFC4281, RFC5334].
\-\-[http://www.archives.gov/ncast/gtri/tr_09_02_extentions_unix_file.pdf][http://www.youtube.com/watch?v=dVMs5YnZ0HU]
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i.e. you can combine any text encoding with any text type. Using PUIDs means that two separate identiefers are required, and tehre is no scheme fot tying them together. Futhermore, in general, one can imagine schemes where centralised minting is not necessary for every combination etc etc.

h2. References

* [http://www.archives.gov/ncast/gtri/tr_09_02_extentions_unix_file.pdf]