Criando um play com variaves PHP

<?php
$audio = "na.avi";
$width_audio = "300";
$height_audio = "65";
?>

<object id='mediaplayer'
classid='clsid:6bf52a52-394a-11d3-b153…
type='application/x-oleobject'>
<embed
src='<?php echo $audio?>'
width='<?php echo $width_audio?>'
height='<?php echo $height_audio?>'

autostart='1' type='application/x-mplayer2'
pluginspage='http://www.microsoft.com/…
transparentatstart='1'
animationatstart='1'
showcontrols='1'
autosize='1'
displaysize='1'
showtracker='1'
ShowStatusBar='1'>
</embed>
</object>