> Mr. Ralph -- are you there? Do you have a position on this?  --Ray

I have exactly this situation now.

If you'll remember, Rob, Jeff Young and I developed an SRW profile for
supporting OAI on top of SRW.  It required that the server support a
couple of indexes and a schema for returning OAI Header information.

To make the process more efficient, we developed a way to return the OAI
header in the response with the actual record (usually MarcXML).  We
return the data in the extraRecordData element.

We request the header with a valueless parameter x-99-OaiHeader or the
empty extraRequestData element <OaiHeader/>.

The general case should be a request for metadata with a schema as the
value of the parm.  The schema should be one of the schemas specified in
the explain record for the database.

Ralph