Might be best to leave compressing them till V1.4 comes, I know v1.3 doesn't see the compressed files, I'll send howard an email see if he can confirm if it can move them when compressed. It's possible all it does is copy the complete folders & not touch the files but I'll check on that. Slowdown in Poser is minimal as it has to uncompress the files to load them, but P4 is still faster than P5 at the moment.