Hi everybody,
sorry for my bad english langage, I'm french and I try to be clear....
we can't use the '.Burn' function in a thread because thise thread use the "System" account in W$ >= Vista.
But the files to burn are not in the System's temp directory, but in the current user's temp directory. So the wizard find any files because he don't look up in the right directory (and he's stupid too :p).
That why ralfschwalbe's solution work fine.
Have anice day