As well as functioning as a separate module, the mp3 player can be used as a content plugin, allowing the player to be directly embedded into Joomla! content articles. This is great for podcasting and similar uses.
The player can be used to play either a specific mp3, or a list of mp3s, or can play a random selection from a folder.
The plugin requires the random mp3 pro module to be installed in order to work, and is sold bundled with that module.