Fun fact is the turbo button wasn't actually turbo anything. It pressed in was the default and designed speed. When it was depressed it set it to run at a lower clock speed. This was meant for older games where aspects of the game like movement and attack speed were tied to the clock rate. With a high speed cpu the game was unplayable so you take off turbo mode and it mostly fixed the issues.

I felt like the difference was only obvious if the disk had gotten really bad in the first place, but maybe it was just psychological from seeing the colors move around.

Oh I just recently replayed Myst. Only outshined by Riven, such a great game.

oh, I could always tell the difference, but it would always take at least a day-and-a-half to run. it was difficult to go without the computer for that long