When viewing a Category list or Search results I see javascript code:
jQuery(document).ready(function($) {
$(‘#wp_mep_1′).mediaelementplayer({
m:1
,features: ['playpause','progress','current','duration','volume','tracks','fullscreen']
});
});
But it is ok when viewing a single post.
http://wordpress.org/extend/plugins/media-element-html5-video-and-audio-player/