The best way is to put the CD in a hard plastic CD box. If not, you can also put it in a paper bag or plastic bag dedicated to CD. Precautions during storage: First, it should be stored in a dry and ventilated place to avoid strong light, high temperature and humid environment. It is best to lie flat. If you find mildew on the CD, you can wipe it clean with water and save it after it is completely dried. For reference.