As you know, I bought a spindle of taiyo yuden but which may be fake.
I burned some and tested it, as following:
my machine is amd duron 750 + 512M mem, which is not very powerfull. system is xp+sp2
1#, flashed 812S to the last stock US0Q I thought. burned at 2.4X, the lowest speed. scaned at 1X