Hi, The netCDF 4.0 release builds the equivalent of netCDF-3.6.3 by default. It only builds support for the new netCDF-4 model and format if you use the --enable-netcdf-4 option to the configure script and also tell it where to find the HDF5 library with the --with-hdf5=... option. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: ZCX-900406 Department: Support netCDF Priority: Normal Status: Closed