SOunds like there groved disk in which case the pada are catching on the disk lips.
Not much you can do realy. just check there seated right.
i have fitted new performance disks and pads and every so often i get a click clonck sound when i brake .
really would appreciate help guys as im going on holiday on sat and will be driving 230 miles each way and im abit worried.
any help would be great
thanks
Some cars have it others don't.Never had that problem with any of mine before?