High PI errors - SONY DVD RM DRU-800A KY06

High PI errors - SONY DVD RM DRU-800A KY06.

I use Nero to compose the image to harddrive and then burn to DVD at x8.
Media is DVD-R x8 - CityDisc - recognized as TYG02?
I get pretty consistantly the following picture:

Any advice other than just to try another media?

First of all, it could be fake TY media. I think trying good media should be considered. Second, as your Sony is a rebadged LiteOn 1693, you should scan at 4x. It should give better results.

:flower: Leo