B-1/2.

I split my runtime directories between major figures (V4, A3, Laura, NearMe, Vicky 3), I have one for all third-party figures that don't really have enough to justify a full dedicated Runtime (e.g. Kururu, AnimeDoll, etc), and then I have one old runtime that was my original one, from 2001 or so. That ancient critter holds Posette/Dork, Vicky 1/2, Dina, etc.) My smallest runtime (for NearMe), weighs in at 2.7GB, and my biggest Poser-specific runtime is for V4, at 83GB.

Finally, I have a positively titanic-sized DS Content directory (I used to have two - one for DS 3.x and one for DS 4.x, but I merged those a long time ago when I realized I didn't need two.) Since DS allows for a more freeform means of organization (only Geometry (or "data") and Texture files really have to be in a specific hierarchical place), I realized that I only need one directory to rule them all, and in the darkness bind them. It weighs in at almost 400GB.