I always advise AGAINST using labels on burned CD/DVDs unless you print them on it with those CD printers (and printable CD/DVDs).
The extra thickness could cause the thing to jam (especially with slide-drives like the Wii has).
Your other option would be to use Lightscribe discs and a Lightscribe drive, this uses a laser to etch the design into the disc (so no added thickness) but I don't think lightscribe DVDs are out yet so meh
Your other option would be to use Lightscribe discs and a Lightscribe drive, this uses a laser to etch the design into the disc (so no added thickness) but I don't think lightscribe DVDs are out yet so meh