Actually InCD is showing with a red X in the product setup list which I assume is because Nero knows that Vista has its own packet writing - or else it wasn't included my download for some unknown reason. It says 0 bytes, application will not be loaded.
I wouldn't have minded trying it to see if it was faster than Vista's.
As an experiment I just tried once again to use Nero Startsmart/DVD/Burn Data DVD and just chose 1 small folder to put on the disk. It burned fine. So it appears that Nero Express is getting swamped when I'm burning a disk to capacity, strange?