\begin{thebibliography}{1}

\bibitem{draft-nomura-mmusic-pguide-requirements}
Y.~Nomura and H.~Schulzrinne, ``Protocol requirements for internet program
  guides,'' {Internet Draft}, Internet Engineering Task Force, Feb. 2002.
\newblock Work in progress.

\bibitem{rfc2119}
S.~Bradner, ``Key words for use in {RFCs} to indicate requirement levels,'' RFC
  2119, Internet Engineering Task Force, Mar. 1997.

\bibitem{draft-ietf-cdi-architecture}
M.~Green {\em et~al.}, ``Content internetworking architectural overview,''
  {Internet Draft}, Internet Engineering Task Force, July 2002.
\newblock Work in progress.

\bibitem{rfc2974}
M.~Handley, C.~Perkins, and E.~Whelan, ``Session announcement protocol,'' RFC
  2974, Internet Engineering Task Force, Oct. 2000.

\bibitem{Foru0206:Metadata}
{TV-Anytime Forum}, ``Metadata specification {S-3},'' TV-Anytime Forum
  Specification SP003v1.2 Part A, TV096R5, TV-Anytime Forum, June 2002.

\end{thebibliography}
