discussion followed on from yaho groups:
>Nic,
>
>The only Broadcast message that responders reply to is the
>DISC_UNIQUE_BRANCH message.
>
>I don't monitor these forums that close, so you'll get faster responses in
>the RDM Protocol Developer forums that we've recently opened at
>http://www.rdmprotocol.org
Page 36 of spec seems to say there are response packets for both of those.
Nic