I downloaded the 2016 Norton Bootable Recovery Tool .iso file. Using the Windows 7 burning software I burned the file to a DVD. I can see the file on the DVD. When I try to boot with the DVD, I hear noises from the DVD reader and my machine then boots from the hard drive. Other bootable DVDs do boot on my computer without problem. Instructions in the Norton Security Product say to "use any tool to burn" the file. IThey say nothing about having to use any special software. I have a Dell Latitude laptop.