On Mac OS X, burning capabilities are built-in to the operating system-- just insert an empty DVD into your DVD/Bluray drive, right-click on the downloaded Niresh file, and burn it.
However, if you're using Windows, you will need to use a program such as Img Burn.
Na minha opinião distro deveria instalar apenas Bootloader e kexts como Fakesmc nada mais que isso, para não atrapalhar mais que ajudar.
The BIOS is basically a settings page for your motherboard.
To enter the BIOS on my own computer's Gigabyte P67A-D3-B3 motherboard, I have to press the delete key when it boots (before the operating system starts).
On Gigabyte motherboards, you can reset your BIOS settings to their default by selecting "Load Optimized Defaults" on the main page of the BIOS.
Once your BIOS is running on its defaults, you need to change these three settings: Boot Device - Change the boot device of your computer so that "CDROM" is first. After you finish installing Mac OS X, you should change this setting back to default, so that "Hard Disk" is the first boot device (this optional, but it will speed up your boot times).
A nova versão distro do Niresh 10.9 já saiu e vamos deixar aqui um guia pratico de como instalar ela em seu computador Hackintosh.