DVD-R for 811s

As this drive is very picky with -R media (+R is no problem) I would like someone to point me out somewhere I can buy Ricoh / Taiyo Yuden media (as from what I’ve seen in the forum are the best) here in Portugal.
Online shops charge a great ammount of money for orders from Portugal.


I’ve been searching, trying to find a “safe list” for the 811s. Where did you find that those two brands are best and is there a particular product from them that’s recommended?