The Java Media Framework (JMF) is an API for incorporating audio, video, and other time-based media into Java applications and applets. It is an optional package that extends the multimedia capabilities on the Java2 platform. The Blackdown JMF is a Performace Pack which includes native code in order to provide faster processing and tighter integration with Linux than the all-Java version.
The Java 3D API enables the creation of three-dimensional graphics applications and Internet-based 3D applets. It provides high-level constructs for creating and manipulating 3D geometry and building the structures used in rendering that geometry. With this software, you can efficiently define and render very large virtual worlds. Blackdown's version of Java 3D uses the OpenGL low-level API to take advantage of 3D hardware acceleration.