How to remove rusted & seized brake discs or rotors

Using a small grinder or disc cutter. Occasionally a brake disc gets so rusted in place that it will not come free using normal methods. A ten year old Honda CRV came into the household this week that was riding on it’s original brake discs, yup, ten years old! They were incredibly rusty and corroded. I tried the usual methods to try and dislodge them based on 25 years of doing this kind of stuff. Gentle (and not so gentle) tapping around the brake disc edge with a soft face hammer. …