Is entire mc loaded, or just mc frame?

just a quick question… I’ve noticed that when I instantiate a MovieClip with multiple frames (here mine has over 200, each with a vector logo) and send to a specific frame, flash player suffers very little slowdown.

I always assumed the whole mc was being loaded into memory? It is possible that my mc simply isn’t big enough to cause any problems. I just wondered if anyone knew the answer?