The ISO file that you downloaded must be burned as "image", not as “data”, so that the system can boot from it. We will explain how to burn an ”ISO”, also known as an "ISO image", both under Windows and under Linux.
After having launched Nero, select from the menu "Disc Image".
A window will now appear enabling you to choose the file you wish to burn.
After having chosen it, click on [open]
The image will be ready to be burned after the appropriate burning options are selected:
option [Disk at once], and not [track at once] then [write]