[SOLVED] Pausing and resuming songs with MediaPlayer?

I want to switch between two different songs, but I don’t know how to do that with the MediaPlayer.
For example:
I start playing song1. After that, I pause song1 and start playing song2. After a while, I stopp or pause song2 and I want to resume song1 at the exact position where I had paused song1 before.
How can I do that?

EDIT: I solved the problem. I found out that I can change the play position within the song with the PlayPosition property.