A weird trove in a brand new Mac

From times to times, Mac manufacturers have been known to forget in the box that's delivered to the consumer things that shouldn't be there.
This time, Benjamin found this CD in the optical drive of his G5 dual 2 GHz.

It seems to be the DVD that's used to check the drive functions well. As you may see, no need to change a tool that works, as this DVD copyright is from 1996. The oldest MacUsers might remember that by that time, no Mac was sold with a DVD reader...