Avid offers their organic Code brake pads in three flavors- steel, aluminum and Scintered. In addition to saving a few grams of weight, the aluminum backing plate does a better job at dissipating heat.
Replaced the stock organic pads on my Avid Codes with the metal-scintered version when they were worn. I wanted to eliminate the dreaded turkey-gobble...and it worked: these pads are silent. I have been running the metallics for about 6 months, and have not noticed any appreciable wear on either the pads or the rotors. I will definitely continue to use these pads: quiet, durable, strong, and inexpensive.