The effect is a breif fast blur, faded in and out in just a few frames, to coincide with a big base drum hit. Later in the movie I need the four layers to spread apart in z space (did I spell that right, is that even a word?) and then come back together as a TV screen to display the main part of the video that this is the opening sequence for. I suppose I could duplicate the layers, pre comp them, and then use the second set for the depth effect but if theres a way to isolate the lower layers that would make the stack less complicated and it seems like it would be a handy trick.
Thanks
A still image man, stuck in a moving picture world.