After reviewing 6 commercial HTML5 audio multimedia players for Joomla 2.5, I found Commedia best suited for my needs. Commedia takes one or more folders, scans them and creates a dazzling table with just one line of code placed anywhere in your article. The layout is modifiable and the sound quality is good. I recommend visiting the Commedia demonstration page. There is also a free version, in the same styling, MP3Browser. Customer support is in English and good.