The 4 speed tests made with nero dvdspeed, the writing and reading was made in Nec 2500 using the original first firmware of december, not touched. 1.062003121900.
YUDEN R+ 4x, Bought as Plextor. One question about Yuden, is Yuden and TY the same thing?
This is only the best results i got till now. About 20 discs everyone mades the same exact curve.