Maxell quit making their own media in Japan quite a long time ago. They use Taiwanese suppliers like most everyone else these days, though some good dvds are made in UAE and India. I wouldn't characterize Maxell as a great brand for blank dvd media these days....they don't seem to be any different from Memorex or TDK or Imation in the types of disks they sell.
The particular disks you are looking at are "real" Maxell. Just not manufactured by them.
If you are in the US, and you want to go to the trouble of ordering online, I'd just get the Taiyo Yuden 8x +R disks at rima.com or supermediastore.com. Supermediastore often seems to have better prices once you factor in shipping.