Reduce Movie-Clip size!

Hi everybody

I have a graphical Flash Project, that all of that’s graphical objects are vectors… My project size is 200k. But in one of my movie clips, I have a big mount of frames mask, to show how one of my objects can show in 650 frame! but because of these lots of frames, my movie clip is 1.5 MB… How can I compressed the size of this specific movie clip!!!
because this mask would not show in my project and quality of that is not important for me

TanQ all…