Free Software for multimedia, including media players and software for editing audio (mp3, wav,) and video production.

Thanks to WinOSS CDRom for contributing to this software list
Art Of Illusion

Art of Illusion is a free, open source 3D modelling and rendering studio. It is written entirely in Java, and should be usable on any Java Virtual Machine which is compatible with J2SE 1.4 or later.

Linux
Windows
Mac OSX
Audacity

Audacity is a free, easy-to-use audio editor and recorder for Windows, Mac OS X, GNU/Linux, and other operating systems. You can use Audacity to:

* Record live audio.
* Convert tapes and records into digital recordings or CDs.
* Edit Ogg Vorbis, MP3, and WAV sound files.
* Cut, copy, splice, and mix sounds together.
* Change the speed or pitch of a recording.
* And more!

Linux
Windows
Mac OSX
Avidemux

Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities.

Linux
Windows
Mac OSX
Blender

Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.

Linux
Windows
Mac OSX
CamStudio

CamStudio is able to record all screen and audio activity on your computer and create industry-standard AVI video files and using its built-in SWF Producer can turn those AVIs into lean, mean, bandwidth-friendly Streaming Flash videos (SWFs)

Windows
Gimp

GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.

This is the official GIMP web site. It contains information about downloading, installing, using, and enhancing it. This site also serves as a distribution point for the latest releases. We try to provide as much information about the GIMP community and related projects as possible. Hopefully you will find what you need here. Grab a properly chilled beverage and enjoy.

Linux
Windows
Mac OSX
Gungirl Sequencer

Gungirl Sequencer is an easy to use Audiosequencer. It includes a simple Filemanager and uses Drag & Drop to arrange Audiosamples.

Linux
Windows
Hydrogen

Hydrogen is an advanced drum machine for GNU/Linux. It's main goal is to bring professional yet simple and intuitive pattern-based drum programming.

Linux
Windows
Mac OSX
Inkscape

Inkscape is an Open Source vector graphics editor, with capabilities similar to Illustrator, Freehand, CorelDraw, or Xara X using the W3C standard Scalable Vector Graphics (SVG) file format. Supported SVG features include shapes, paths, text, markers, clones, alpha blending, transforms, gradients, patterns, and grouping. Inkscape also supports Creative Commons meta-data, node editing, layers, complex path operations, bitmap tracing, text-on-path, flowed text, direct XML editing, and more. It imports formats such as JPEG, PNG, TIFF, and others and exports PNG as well as multiple vector-based formats.

Inkscape's main goal is to create a powerful and convenient drawing tool fully compliant with XML, SVG, and CSS standards. We also aim to maintain a thriving user and developer community by using open, community-oriented development

Linux
Windows
Mac OSX
Jahshaka

JAHSHAKA is the worlds first OpenSource Realtime Editing and Effects System. Jahshaka takes advantage of the power of OpenGL and OpenML to give its users exceptional levels of performance. We currently support Linux, OsX, Irix and Windows, and Solaris is on the way! Jahshaka is licenced to the public under the GNU GPL agreement.

Linux
Windows
Mac OSX
Miro

We're developing the Miro internet TV platform so that watching internet video channels will be as easy as watching TV and broadcasting a channel will be open to everyone.

Linux
Windows
Mac OSX
VLC

LC media player is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network.

Linux
Windows
Mac OSX