Visitors could download a Twisties screensaver, video and Windows 95 theme pack. An "organic art" 3D screensaver rendered unique infinite 3D visual shapes. The game also includes an aquarium screensaver, which the user can personalize. It uses screensaver themes compatible with Xscreensaver. Raymond Kurzweil's company has produced a downloadable screensaver of AARON for Microsoft Windows PCs. The film is available as a free screensaver on the director's website. The CD includes promotional materials, such as songs, screensaver and a Snake Eater music video. Previews the screensaver as child of window. A Windows screensaver is a regular Portable Executable (PE) with the codice 4 file extension. Due to incompatibilities in the gnome-screensaver screensaver application it was replaced by xscreensaver. The screensaver is also a creative outlet for computer programmers. In March 2008, Blinkx released the Blinkx Beat video screensaver. He is also the co-developer of the computer screensaver system Flowfazer. The usage of a screensaver can help during times the computer is left unattended. It is described by Sony as an "interactive screensaver," rather than a game.