Nero offers free updates and according to their website:
“The update CANNOT be used for upgrading to a higher Nero version (e.g. not from Nero 5 to Nero 6), just to update to the latest available version within one sequence: e.g. from Nero 18.104.22.168 to Nero 22.214.171.124”
Does anybody know if these updates will update an OEM version of Burning ROM?