No need to understand it, if you are just using Poser (or Daz Studio).

Basically, "Runtime" is the name of the top level directory that holds many (many) sub-directories that in turn hold the Poser files you load into poser.

An example of the directory tree can be as follows:

RUNTIME
   |
   ---- GEOMETRY
   |
  ---- LIBRARY
  |         |
  |         ---- CHARACTERS
  |         ---- PROPS
  |         ---- etc....
  |         |
  |
  ---- TEXTURES
 |
  ---------  etc....

A library, like it's book equivilant, just holds files (content) you use/load in Poser/D|S

Hope this clears up some mud, infocentral.

-AniMajik

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