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>