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Dierk, > What is your feeling on the campatibilty between files created in 3.4 > and 3.5 > > In the past we have had massive problems of having to rewrite code.. > and files not being compatible. > > The Java based webwinds uses 3.4, most of my users use GRADS, NCVIEW > and MATLAB.. netCDF 3.5 uses exactly the same file format as netCDF version 3.4, and in fact exactly the same file format as used by all releases of netCDF 2.x and 1.x, going back to 1989. We take backward compatibility very seriously, so we have not changed the netCDF file format since 1989. --Russ