Rotor replacement

Ok, I'm a little confused between the two replies. The shop manual says the rotors bolt onto the hub. If this is incorrect and the rotors press onto studs then I'll order new studs before I start.
It is incorrect. They simply phrased it wrong. I've done the job many times and used the same studs. If you're really careful and use a pointed punch, you can drive them right out and never hurt a thread. I just rebuilt a set recently and did this. The only reason I did replace five studs was because one side had left hand thread studs and I wanted all right hand.