If you have small children in your family, then you are probably familiar with the situation in which straight after they learn to move around independently, they begin to touch everything that they came across. In particular, children like to open and close the CD/DVD ROM on the computer, and press the Reset button. The CD/DVD Locker helps to temporary turn the CD/DVD ROM drive off, and so pressing on the CD/DVD drive's buttons doesn't lead to the CD/DVD ROM being ejected.