[html] Embedding a media player in a website using HTML

If you are using HTML 5, there is the <audio> element.

On MDN:

The audio element is used to embed sound content in an HTML or XHTML document. The audio element was added as part of HTML5.


Update:

In order to play audio in the browser in HTML versions before 5 (including XHTML), you need to use one of the many flash audio players.