There are 2 different kinds, one is for the geometries file, that one is usually the larger one, the second one is the thumbnail used by poser in your libraries...that is usually the smaller one. Poser creates the .rsr files when you decide to use an object file (obj) in the geometries folder and places it with the geometries folder. You can delete them and if you use the object file again, Poser will recreate another rsr file for it. SHaren