In Dreamweaver, to use the Insert > Flash Video feature,
you have to insert
an FLV file. You cannot insert an MPEG file into DW using
Insert > Flash
Video. To convert your MPEG into an FLV, you will need to do
this through
Flash 8 Professional. For information on converting to FLV,
please refer to
the Flash 8 documentation.
--
David Alcala
Adobe Product Support