I have had this problem many times from where I used to work.
Most of the time, it is either due to a damaged CD/DVD ROM or the disc is dirty.
I would try cleaning the disc first, and if that wont work, check if a friend's system will boot from it
Fujitsu Lifebook P727 laptop review
Converse's new logo: the trainer brand looks to its heritage for a fresh identity
Mac power user tips and hidden tricks
Comment lancer Windows 10 en mode sans échec ?