TELL me about it! I have just slightly under 4.5 GB's of Poser nonsense on my D drive, right? So, one of my first Rhino models was this enormous (file-wise) hair object I made, well before I learned how to keep polygons under control in Rhino. I wasn't really paying much attention, and suddenly I discover I'm down to only 56 MB on my D drive. I determined it ws my Poser .cr2's-- the ones with that particular hair prop on it were around sixty megabytes each! I regained over 800 MB's just resaving those CR2's without the hair-- after all, I only need one copy of the hair prop itself. After all that, I began looking for other excesses in my Poser folder, and found alot. My advice would be, instead of going on a mass deletion spree, first look for redundancies within your files.