I don't really know how to describe it. It's not an all the time thing but I've been noticing it more and more frequently and it hasn't been doing this all the time. It probably started a week or two ago. When I'm coming to a stop the breaks make a semi-loud creaking noise. (That's the best way I can describe it.) It's not the normal Audi brake squeel it's a much different noise. I just had the 80k mile service (my car's about about 84k now) so I'm not sure if they did brakes or anything?

Is there anything else you need to know to help me identify this problem? It's starting to freak me out because it doesn't sound good.