Brake Squeel

[surfRenegade]

I have a brake squeel coming from my front drivers side. It isnt consistant, but once I drive around a bit I start to hear it and its very annoying. I was wondering the cause of this. The pads still have life and the rotors where replaced last year..not sure what brand they put on. Is this an issue with a damaged caliper that is dragging, or is it a warped rotor?
Thanks

 

[Ry' N Jen]

Could be something as simple as something stuck in between the rotor and brake pad.

 

[ChiefRudy]

Disc could be dirty. Mine squeek from time to time since I only drive my jeep on the weekends.

What about the quality of the pads and discs? Cheap brakes squeek more due to cheaper materials used.