CD labels and DVD labels are used to distinguish and label CDs and DVDs. Two circular labels (known as full face labels) and a number of rectangular labels are normally included on A4 sheets of CD/DVD labels, which can be used to label the case each disk is housed in. With the exception of the center spindle hole and, in certain circumstances, the (typically transparent) components around the spindle hole, such as the clamping ring, stacking ring, and mirror band, the circular labels are meant to cover the whole face or surface of a disk. These labels are generally used to provide information about the disk's contents as well as the owner or developer of that content. There are several pieces of software built specifically for this purpose.
