Access-based warehouses, catalogs, and libraries all use *.mdb files.
Maintain these in separate directories in order to find the individual database type easily.
GeoMedia has separate folder locations for the Access versions of these files, so add the word catalog, library, or warehouse to filenames in order to distinguish them from each other.
Oracle, PostGIS, SQL Server and SQL Server Spatial can also contain libraries and catalogs, so name the associated schemas to distinguish them from standard spatial schemas