Would rewriting an RW disc with the exact same data cause degradation?

#1

There is no reason to do that, but if I rewrote the exact same data/image to the same disc 1000 times, would it degrade?

Does burning even always start at the same physical position of the disc?

@Vogelschreck: Did you write the exact same data repeatedly or different data on your RW degradation test?

#2

Sure it will degrade, the dye is heated up by the laser every time.
How much, I never tested.

I always wrote different things.