Jason, Sorry again, I seem to be confused about that NF90 flag and need to clear up the documentation and my understanding. According to the documentation, the flag should be NF90_HDF5, not NF90_NETCDF4 or NF90_FORMAT_NETCDF4. Please stand by, while I make sure about this ... --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: YTY-788071 Department: Support netCDF Priority: Normal Status: Closed