Hi Ben, At one time, there was an effort to support NCO as part of Fink, the MacOS X package system, but as you can see from this link http://pdb.finkproject.org/pdb/package.php/nco there is now no maintainer. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: WEF-163229 Department: Support netCDF Priority: Normal Status: Closed