Couple of days ago bought Lite-On SOHW-1653S model and tested with it DVDRs I recorded at my workplace with SOHW-1213S and noticed that KProbe (v2.4.2) always reports errors (PUH skipped at LBA ...; servo error) when it scans at MAX speed (selected maximum in KProbe) in the same places for every DVDR when speed reaches 5,1x at 25% of the disc and 7,5x at 79% of disc. At the begining i taught maybe it's fault of my recorder at work, but then i burned a couple of DVDRs in my own recorder an after that scanned them - the same errors at the same places. Tried different discs - no changes. Updated firmware to CS09, also doesn't help. Recorder at my work don't show theese kind of errors and DVDRs burned with my burner is good quality. Seems that my recorder only reads badly them, in those places I mentioned above (25%,79%) speed drops when ripping DVD with DVD Decrypter.
Seems that it's likely a hardware fault. It's on warranty so I think maybe the best way is to bring it back to store so they change it. I'm so mad at the moment, because always when you buy something useful it always has some bugs that breaks your mood down to zero. :(((
I hope that someone who reads my post will give me a good advice.