[Chimera-users] binning large volumes

Hello, I have two volumes with the same dimensions and each are nearly 2GB. I can use the vop resample command in a 64 bit Chimera for Linux and reassign one volumes coordinates relative to the other. However, it is slow to execute, but it does work. In order to speed things up is there a way to bin the volumes (to use less space), place it through the vop resample command, and then un-bin the volume without losing information? Thanks! Lori