My mid 2007 macbook won't boot help!!!

My macbook won't show the screen where you hold down the option key and it won't show the apple logo or the spinning gear just a blank white screen when I turn it on HELP PLEASE! I replaced the old hard drive with a brand new 500 gb 2.5 inch data hard drive.I also purchased a brand new copy of OS X 10.6 Snow Leopard. I need help installing it cause when I put the disc in and power it on holding the option key nothing happens just a white screen with no apple logo or spinning gear. PLEASE HELP ME OUT😕