>I don't think PnetCDF is just for reading/writing CDF-5 files. >It also allows a netCDF program to perform parallel I/O to CDF-1 and CDF-2 >>files. That was the info I was not aware of. Now I can fix the problem. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: RBG-405878 Department: Support netCDF Priority: High Status: Closed