For burning the image on DVD I found 2 iso files: CentOS-5.5-x86_64-bin-DVD-1of2.iso CentOS-5.5-x86_64-bin-DVD-2of2.iso I found out that the first one is 4.1GB and the second one is 412MB. Do I have to burn the first one on 1 DVD and the second one on another DVD?