Managing two or more flv movies with NetStream

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I’ve searched for a free split and join flv files software without success. I intend to play two flv movies on stage, one after another. How can I detect that the first movie finished in order to start the second one? I am working with NetStream objects in AS2. <img src=“images/smilies/no_love.gif” border=“0” alt="" title=“No Love” smilieid=“262” class=“inlineimg”>