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It won't help you to know that I'm using the Vista burning tool to burn CDs
and DVDs via right-click 'Send To' and selecting the DVD-RW drive. It then
formats the disk and copies the data.

I didn't bother to install Nero and would suggest you uninstall it then
delete 2 registry keys :-

Start, Run, type regedit and navigate to registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}.
Highlight it and in the right pane, find the Upperfilters and Lowerfilters
values. Highlight each one in turn, right click and delete them. Close
regedit and restart the computer. If in doubt make a restore point before
making the deletions.