I'm having similar issues upgrading my Rover mk3 which is at 3-1/31, I've tried several different images, ranging from OEM to modified. mode2convertor and m2cdmgui work fine, but I always get "Incorrect CD" when I try to upgrade. I've tried, MagicISO, ImgBurn and Clonecd, to write the images. 3 different brands of discs and 3 different drives. All I've succeeded in doing is making a pile of coasters . Any ideas?