Valid technique, as it doesn't need the <embed> tag.

<object type="video/x-ms-wmv"
  data="movie.wmv"
  width="320" height="260">
  <param name="src"
    value="movie.wmv" />
  <param name="autostart" value="true" />
  <param name="controller" value="true" />
</object>

Reference URL