DVD-R burned by 411s,read by a Mac

Mmm my brother seems unable to read DVD-R burned at 4x in ly 411s FS07. Media are TDK DVD-R 4X TY.

Kprobe, DVDInfoPro show nothing bad.

I think the drive in the Mac G4 is an OEM Pioneer.
The weird thing is that it read pretty well a DVD+RW VR Mode… and not my DVD-R ? In a Pionner drive ?

I’m lost. Someone knows something ? :bow: