Hi Nikroc
I dont know what brand. PO bought them new. Yes complete total failure. no bite. no brakes. Once I was downhill riding heavy hairpins (in post-rain weather) and the rear brake went. I understand that because the heavy braking overheats. The next morning rear brake was fine.
The other day I was riding offroad in heavy rain and everything was fine. No problems.
The pads are 4 years old. I dont use the bike much except for tours.