One embodiment of the present invention is a method for broadcasting
information to a client device, which device utilizes presentation rates
to present information at various presentation rates, and which method
includes: (a) broadcasting information; and (b) broadcasting guidance
information used to determine presentation rates for use by the client
device in presentation of the information; wherein the guidance
information comprises insistence information that specifies a measure of
importance of utilizing presentation rate information contained in the
guidance information.