The third one I got is an exceptionally good reader....

able to read a cdrw disc that won't get ready in the second one, and showes a lot unreadable sectors in the first one....

But 不耐操 can even be reflected on reading.....

With CDspeed's scandisk

the first run is mostly green, more and more yellow shows up on each succeeding run..

And it get better again after i let it rest for a while...