Loving kindness and mind exercise

As I laid in my bed listening to track 3 and trying to practice my breathing and do the relaxation exercise my CD went to a loud static sound and disrupted the relaxation exercise. However, before the CD was interrupted I felt the practice was very helpful and I felt my mind and body relaxing. Breathing helps you stabilize and calm the body. I recently used ear plugs just to try them out to see if it made a difference when sleeping and when I put the ear plugs in my ears it was like I slipped into a whole new world, the outside world was suddenly calm. The ear plugs enabled me to listen to my own breathing and hear the steady rhythm of breaths which relaxed me and helped me fall asleep. If you anyone hasn't tried this technique I highly recommend trying it one time and see the difference. As far as the dysfunctional CD, has anyone else had problems with the CD they got from Kaplan? I guess it is too late to return it and ask for a new one.