What does the correct brake rotor finish look like?

[toycollector10]

I want to get both faces of my rotor machined smooth as they don't look too good. Does anyone have an image of what the finish should look like and also give me the name of the process so that I can phone around the engineering shops in town to see who can do the job for me.
I'm going to retain the black paint on the inner part but does anyone know how to clean up the rusty looking inner ring that has the chromed domes?
Many thanks, TC

[Sgt.Pinback]

Scotchbrit and a mill

[toycollector10]

Thanks for the input, I'll do that.

[toycollector10]

I had my rotor spun and treated with coarse to fine grades of garnet paper then I masked and painted it. I used Metal Rescue to get rid of the brown rust scoring deep in the metal. Two hours to mask and ten minutes to paint with a spray can.

[kp]

looks to be a nice result. Well done