clipBegin/End don not want to work

From: Johannes Köhler <johannes.koehler@student.hpi.uni-potsdam.de> Date: Thu, 7 May 2009 23:59:39 +0200 Message-ID: <991f13fa0905071459l2db63a1ie4ab7f52d39c010c@mail.gmail.com> To: www-smil@w3.org · This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 27 October 2009 08:37:40 GMT

Hello

I really need help.
I am trying to get my smil file to be played properly but the clipBegin and
clipEnd just do not want to work so it keep playing the whole video.
Can anyone help me?
Here is my little code...

<?xml version="1.0"?>
<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
    <body>
        <video src="
http://stream.hpi.uni-potsdam.de:8080/httpfs/Archive/www_ss06/www02.ram"
clip-begin="3546770ms" clipBegin="3546770ms" clip-end="3775890ms"
clipEnd="3775890ms" />
    </body>
</smil>

thank you for reading

Johannes