START = FILEOPEN

FILEOPEN, which is the default value, makes the movie start when the file is opened.

For example, this code

<IMG 
 SRC="../graphics/moonflag.gif" 
 DYNSRC="../graphics/moonflag.mpg" 
START=FILEOPEN 
 ALT="Astronauts on the moon">

starts the movie as soon as the page is opened:

START=MOUSEOVER >>>