How can you play Ogg files in DirectSound?

Okay, as suggested, I'm going to try using "Ogg" files instead of MP3 files. I've already found a free app that converts mp3 to ogg, so all I really need now is a way to play them! This is for background music, so ideally I would like to create a class with the following interface:

public class OggPlayer()
{
public void Load( string filename );
public void Play( bool playLooped );
public void Stop();
public void SetVolume( int volume );
}

Because this is background music, it obviously needs to loop automatically. And because I don't want it cutting off rudely mid-note, I would like to be able to fade it out as well (thus the "SetVolume" method).

So I know exactly what I want; my main difficulty is that I've never worked with ogg files in my life, and I'd never worked with DirectSound until about two weeks ago!

Can anyone post some code examples that would be helpful, or perhaps even a link to a tutorial or class that already does this I'm working with C# and managed DirectX, if that helps narrow the field at all...