Even though you may have paid for a legitimate copy of the CD, you do not have the right to distribute it to others without permission from the copyright holder. When you purchase a CD, you are only purchasing the right to listen to the music yourself. You do not have the right to make copies of the music or share it with others.
If you are caught downloading copyrighted content from LimeWire, you could face legal consequences, such as fines or even jail time. It is important to only download content from legitimate sources, such as iTunes or Amazon Music.