My liteon sohw-812s worked fine for the last 4 months.
But, a week ago, when I tried burning 2 TY DVD-Rs I got 2 nice coasters.
Today I tried to burn to Maxell DVD-R - kprobe scan below.
I tried flashing to different firmwares (VS0A,US0N,VY08
- OPed to recommended strat swaps and bit setting)
and also cleaned the laser lens. But the results were the same.
So, is it time for RMA?
Here is my kprobe scans of TY and Maxell 4x burns.