The reason that netcdf-c reads this is because it is using sscanf to convert the value. But, the code did not properly check that all the value characters were being consumed. The solution is to fix the netcdf-c code and not to allow illegal values. Yet to be verified is that the thredds opendap code is not the source of this error. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: VGQ-678069 Department: Support netCDF Java Priority: Emergency Status: Closed