Hi Mouse,
sorry I've not responded for a while. I'm not sure what software is being used to create the disc, as the download wizard does everything. A window comes up saying disc being created, then after a while the CD draw opens and closes automatically and after another short while a window opens saying the disc can't be created. Also another window opens showing the two files I mentioned.
Any ideas?

Hi 100andthirty,
No I can't open a DVD using windows explorer. I think mouse is on the right lines and that the firm ware somehow dropped of the system.