Strip DRM from WMV File

I am a 14-year-old girl. My hobby is listening cool, rock music, thus I bought lots of songs in my iTunes app. The day before, my girl friend Neco wants to share my music, but when we transfer the iTunes music to her iPod, it says can read. Neco remind me that this is affect by DRM (Data Rights Management). Thanks to the DRM Ripper which helps us make the music normal with the sound quality. From then on, when met the situation, I would introduce this one.