The REARS were another story. First with the one at question the rear inside pad wore groves into the rotor on the passenger side..so that had to be the noise.
I drove it up and down the street about a mile or so and everything seems to be fine. So it looks like it was the inside passenger brake pad scrapping the rotor.
Did you replace the rotor that was damaged?, or at least have it turned? (IF it was still thick enough)
You will prematurely wear the new pad on the rough surface if not...