All,
Thanks for the comments and suggestions.
I was very careful to follow the procedure for bedding in the brakes when I first put them in. I cannot remember whether they were provided by the rotor or pad manufacturer. I think it was the rotor manufacturer.
On the issue of how agressively the brakes are applied, my wife drives the car. She doesn't race the car or drive very fast so I'm thinking that that is probably not the issue (I could be wrong of course). I know she doesn't ride the brakes either.
On the ceramic pads issue, are you sure the ceramic pads generate more heat? In my recollection, I thought they generated less heat. I'll do some research but let me know if you see information about this.
Adrian