This directory contains the following files: AAREADME.txt This is the AAREADME.txt file. CHANGES.txt Change history for CDF 3.3.1. cdf33_1_2-setup_universal_binary.tar.gz This is a self-installation pre-built package for PowerPC and Intel Mac OS X (32/64-bit), 10.5 or later. All libraries and executables are universal binary. Download and double-click the downloaded file for installation. This package contains everything CDF offers except for the CDF Perl APIs and contains the following: - pre-compiled CDF library (for C, Fortran, and Java) - complete suite of the CDF tools (both GUI-based and command-line-based) PerlCDF33_1_2.tar.gz Compressed tar file with the Gnu 'gzip' utility that contains Perl-CDF APIs. Download this if you are planning on developing CDF applications in Perl. Have to build the package. PerlCDF33_1_2-binary.tar.gz This is a pre-built package for Perl-CDF APIs. The files will be extracted into directory PerlCDF33_1. The library for Perl-CDF APIs is built for 64-bit Perl (5.10.0). Release.notes CDF 3.3 release notes. src_distribution Directory where the CDF source distribution is available. Go here if you want to build your own CDF library and tools. cdf33_documentation This file directs you to the documentation for CDF V3.3.