Your theory makes no sense unless the ty media you have is fake.
Just because it burns to verbatim does not mean your plextor is not faulty, fair enough if you also burn thousands of disc's successfully with various dye, then the second you try and burn various batches of taiyo yuden you get a problem.
Its like saying i tried ImgBurn to write to disc it failed but the 2nd i tried with nero it worked, as it would have not worked in nero and worked in ImgBurn if you had a time machine and reversed the order you tried.
So maybe the tys you have are faulty or faked.
Maybe your plextor is faulty.
The plextor i had was faulty from day one woudl write 5 discs of the trot, t hen the next 5 would fail when trying to set book type on a dvd-r which is not possible but it still tried and destroyed multiple disc's.
All you can do is update the firmware, make sure image is good, use decent media on a know clean install of XP or whichever operating system your using, then if it still fails like that accept it is faulty and return it as such.