Adobe (Acrobat) Reader
The most reliable, efficient, and effective way to share information electronically.
Available for Linux, Windows 95 or later, MacOS and Unix versions.

Adobe Flash Player
Experience animation and entertainment on the web with Flash, the web standard for vector graphics and animation. Check out the Flash Showcase for more examples.
Available for Linux, Windows 95 or later, MacOS, and Unix versions.

Adobe Shockwave
Experience quality interactive games, multimedia, graphics, and streaming audio on the World Wide Web.
Available for Windows 95 or later, and MacOS.

Media Player for Windows
Enjoy music and video playback with Windows Media Player.

Media Player for MacOS
Enjoy music and video playback with Windows Media Player.

QuickTime by Apple
The Apple QuickTime plug-in lets you experience QuickTime animation, music, MIDI, audio, video, and VR panoramas and objects directly in a Web page.
Available for Windows 95 or later, and MacOS 8.1 or later.

RealPlayer by RealNetworks
RealPlayer lets you play streaming audio, video, animations, and multimedia presentations on the web.
Available for Linux, Windows 95 or later, Mac OS, and Unix versions.