MPEG animations can be created from the outputs of the FRAME command—either HDF animation files or a sequence of GIF images. Various public domain utilities are available to perform the conversion from Ferret's output formats into MPEG animations. The routine hdf2mpeg (available in 2002 from ftp://ftp.ncsa.uiuc.edu/HDF/HDF/contrib/NCSA/HDF2MPEG/ and still later at
ftp://ftp.hdfgroup.org/HDF/contrib/NCSA/HDF2MPEG. As of this writing we were unable to locate this code. )

can be used to convert HDF files into MPEG animations; mpeg_encode (available from mm-ftp.CS.Berkeley.EDU in /pub/multimedia/mpeg/encode) can be used to convert sequences of GIF files. New and improved routines may have become available since the time of this writing. See further documentation on this topic in the FAQ  on making mpeg files.