Thank's for your answers!
I could not wait, i've just got my hands on a 5-pack Verbatim DataLifePlus DVD-R 4x Pastel (43267) and as you wrote, OC-Freak, in Scandinavia the pastel discs is Taiyo Yuden (TYG01). Made in Japan.
Nero reports 8x possible, haven't tried it yet, let's hope it work's good.
OC-Freak, if you reread my post I did not mention +R, only -R
The DataLifePlus DVD-R 4x (43169) is Mitsubishi discs (MCC 01RG20), made in India. Great at 8x.