I can also confirm that.
When i burned Boom Blox into two different cheap dvd+r (plus) Wiigator gave error 324.
But when i burned Boom Blox into quality dvd-r 4x (minus) and again into cheap dvd+r (book type dvd-rom) the game played well on both dvds.
Also i can confirm that some games can...
sometimes to the point of thanking me for my quick actions etc against spam and other stuff, but yea...its either they come to respect me or outright hate me