I have great troubles with TYG02 (no label, sold at www.cdrwinkel.com).
My PI errors are around 300. Tried different firmwares, 1.W8 and the 1.04 orginal NEC fw.
Burnt using Nero at 4 (!) speed, I have tried 8 speed and 2 speed as well (but got worse results).
I thought TYG02 was such great media! Haven't found any helpfull info using Google or this forum.