When I use File -> Burn image and select the .iso (which is 2Gigabyte), you then get the burn-wizard. You can select the write-speed and also a dropdownbox with "CD"/"DVD".

If I choose "DVD", the large indicator at the bottom (which normally indicates how much space you've used, and turns yellow/red when you want too much) shows 700Mb and turns red because the .iso is too large.
If I choose "CD", the indicator is 4.5Gb wide. This is the exact reverse as I would expect and I've been trying for hours, but I can't get nero to burn the image .

Anyone had success with this?