Should I read at lower speeds?

[Machina]

I've been using BlindWrite before Alcohol 120% and I do not remember being able to edit many settings there (does it figure out what protection is used by itself?) , and it says that Alcohol 120% has a higher precision reading or something...
I did like BlindWrite, but from what I heard, it does not make 1:1 copies, it uses other ways to make WORKABLE copies...

Maybe I should try it again...
I made working copies of Morrowind with my Plextor 16x CD-RW and BlindWrite...