My first impression was that the 411S is picky about media (and that media quality fluctuates quite much - even from quality manufacturers) - and LiteOn's firmware revisions haven't been that consistant from the point of -R writing quality.
BTW ... -R isn't the sweet spot of this drive with newer firmwares although TYG01 should be safe to use anyway.
+R (with bitsetting, thanks god) works flawlessly ... YUDEN000 are being written very well and are compatible to any standalone I've tried so far.
+RW (checked 4x Ricoh by TDK) is good, too ... if you take the time to stabilize the media (IMO, dual full format is recommended before recording data that should be trusted)
I can buy Taiyo Yuden +/-R at around 10Â¤ for 5 so I don't complain
K-Probe usage is another pro-LiteOn argument ...
Last week, I flashed my drive to 811S (not for faster recording, but for improved writing quality) and this seems to work quite well - I still have to check out different 811S firmware revisions, though ...
As a reader, the 411S will still read DVD's where my PX-116A DVD-ROM fails due to high PI/PO error sums ... so there is no problem from that point either (although I'd vote for a little higher reading speed).
All in all, I'd rate this drive B (on a scale from A-F with A being the best) ... :bigsmile: