Snow Leopard- Not booting from start up disk

I am trying to do a clean installation of Snow Leopard on my Macbook. It previously had Mavericks, I erased everything and inserted the Snow Leopard disk, attempting to reinstall. However I boot from disk holding down "C", and then I receive a "you need to restart your computer. Hold down the Power button until it turns off, then press the Power button again" message.

I tried booting in "safe mode" but that doesn't do anything.

Anyone able to help?