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Jeff, I work at Unidata/UCAR and my current project is to convert GRIB2 to netCDF format. The current decoder works for non-compressed GRIB2, so it needs to be updated for compression schemes, JPEG2000 etc. Do you have documentation that explains the compression schemes for GRIB2? My current searches have revealed only vague documentation and the Official GRIB2 docment needs to be updated for the compression schemes. The data that currently interest me is the eta model in GRIB2 that uses the JPEG2000 compression. My decoder is written in java so the available GRIB2 decoders with compression schemes are not applicable for my project because they are written in c or Fortran. Thanks for you time, Robb... =============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================