Help please DRM trouble!! How to remove DRM protection from CD files?

Okay, complete computerphobe here I bought a cd and downloaded it to my computer with the intention of loading some songs onto the kids' MP3 players. Well, here is where the problems started!!

I had no idea what DRM's were (till now) the CD obviously had one! Now windows media keeps shutting down saying it had to because of a problem!? When I tried to sync. anything onto the player it shuts down also. Help please? Do I need to remove files - if so what? I have tried to contact Microsoft but they are not replying!! Please bear in mind when replying, I am an old biddy who needs real laymens terms and big help!!!
Thanks, Nicky x