Here's the differences between Brembo, Galfer and some other unknown brand. Notice the spring clip for the brake pin on the Brembo and Galfer. The other unknown pad doesn't have the spring clip. When searching replacing pads make sure it has the clip. I think this may help prevent brake squeal. Also notice the Brembo has three groves and the Galfer has one grove in the pad material. Again it's my belief this helps the pad preform better by allowing gasses to escape during hard braking. The unknown brand doesn't have this either.