推荐用格式工厂，把视频转成flv格式的，然后再用一个swf的小插件，叫vcastr.swf，自己去百度下就知道了，调用方法如下
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shock
wave/cabs/flash/swflash.cab#version=6,0,40,0" height="550" width="650">
<param name="quality" value="high" />
<param name="movie" value="vcastr.swf" />
<param name="FlashVars"
value="vcastr_file=zhanzi.flv&LogoText=www.gxus.net&BufferTime=3" />
<embed flashvars="zhanzi.flv&LogoText=www.gxus.net&BufferTime=3" height="550"
pluginspage="http://www.macromedia.com/go/getflashplayer" quality="high"
src="vcastr.swf" type="application/x-shockwave-flash" width="650"></embed>
</object>
