The manual says that there is built-in support for WAV and OGG formats. I didn't see anything about MODs. There are also banks and streams in RAM that you can store resources with.
In fact, you can view the docs if you wish. Just download the demo, unSIT it, and open doc\index.html.
In fact, you can view the docs if you wish. Just download the demo, unSIT it, and open doc\index.html.