Hi, Any of these should work, they all link to the same netCDF home page: http://www.unidata.ucar.edu/netcdf/ http://www.unidata.ucar.edu/software/netcdf/ http://www.unidata.ucar.edu/packages/netcdf/ There are downloads pages for either netcdf-3 or netcdf-4 here: http://www.unidata.ucar.edu/downloads/netcdf/netcdf-3_6_3/index.jsp http://www.unidata.ucar.edu/downloads/netcdf/netcdf-4_0_1/index.jsp To decide whether to install netCDF-3 or netCDF-4, this information may help, unless you already know which version the ETA model requires: http://www.unidata.ucar.edu/netcdf/docs/faq.html#fv4 --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: YTM-526362 Department: Support netCDF Priority: Normal Status: Closed