Hi Mike, The netcdf-4 beta releases and the production netcdf-4 release that was announced on June 12 all support zlib per-variable compression, as in HDF5. Is there some reason you prefer a beta release to the production release of version 4.0? The production 4.0 release is available from the netCDF web site at http://www.unidata.ucar.edu/netcdf/ --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: XZO-926332 Department: Support netCDF Priority: Normal Status: Closed