I've tried your tip: the video goes well, but the audio isn't still working...
This is the code of my epub file:
"
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops">
<head>
<title>Prova Ebook su Sigil e Calibre</title>
</head>
<body>
<p> Audio: <audio controls="">
<source src="../Audio/country7.mp3" type="audio/mp3"/>
</audio>
</p>
<br/>
<p>
Video locale in WEBM: <video width="320" height="240" controls="">
<source src="../Video/prova_video.webm" type="video/webm"/>
</video>
</p>
</body>
</html>
"
What can I do?
Thanks