04 CR-V rotor(s) plz help?

So I was changing the rotors and brake pads on my 2004 Honda cr-v, the 2 rear rotor screws, which are located in the center of the rotor came out easy, but for some reason the front rotor screws wont budge, I even broke 2 screwdrivers in the process.. Any one have any tips or how can i get the screws out ? Thanks