Before the "burn in" process will work the rotors should be scuffed with sandpaper on emory cloth. This needs to be done to break the glaze on the rotors for used brakes. It also needs to be done on new brakes to get all the rust inhibitor off the rotors.

The squeak is from the pads chattering in the calipers. Glazing is what causes chatter. The Burn in process puts brake material into the rotors to make them more effective. This makes the brake pressure less for the same braking effect. Less pressure = less heat = less glazing + brake dust.
The vehicle should not be allowed to stop during the burn in. This can cause the pads to leave a chunk of brake material on the rotors which gives a pulse in the pedal and/or steering wheel. if that happens your have to start all over.

To give you an answer. . .no the rotors are fine. They just need to be scuffed and burned in again.

SS

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2007 Suzuki Vinson 500 4X4
2007 Toro 6.5hp
2006 BMW X5 4.4 ltr (his)
2001 BMW X5 4.4 ltr (hers)
1994 Honda XR650L
1984 Honda XR80

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