Exposing split media

I'd like to propose a standard, optional extension to the rpm metadata
for handling split media, it serves as a hint to the metadata parser in
order to determine location:

<?xml version="1.0" encoding="UTF-8"?>
<mediaset xmlns="http://linux.duke.edu/metadata/mediaset" volumes="4"
packages="2">
<package pkgid="56f1eaac679ce0e42f371b8c82476f784878011f" name="setup"
arch="noarch">
   <version epoch="0" ver="2.5.47" rel="1.1" />
   <mediaindex volume="1" />
</package>
...
<package pkgid="995dbf65a45ac6f31c5f165789ce4262476f888b"
name="nasm-rdoff" arch="i386">
   <version epoch="0" ver="0.98.39" rel="3" />
   <mediaindex volume="4" />
</package>
</mediaset>

A simple parser based on mdparser in yum would be adding the handler:

 '{http://linux.duke.edu/metadata/mediaset}mediaset': MediaSetEntry

class MediaSetEntry(BaseEntry):
    def __init__(self, elem):
        BaseEntry.__init__(self, elem)
        self._p['pkgId'] = elem.attrib['pkgid']
        self._p['volume']= None
        for child in elem:
            name = self._bn(child.tag)
            if name == 'mediaindex':
                volume = child.get('volume', 'mediaindex')
                self._p['volume'] = volume
        elem.clear()

Views?

Paul