I recently purchased some full hub gloss printable dvd's and I notice that the white is not opaque. The center ring about 1/2 inch larger od near the center id has a metallic ring that is noticable under the white coating. This is the same ring that the NON-full hub discs end at.
I bought the discs from discmakers.com (some type of hydragaurd or something like that).
It would ne nice if there is a nicer disc out there somewhere.
Aug