The files are in a freedom (libre) format included within a zip file which you can download.
For further reference, visit the free software foundation site.
The art, writing and multimedia work on this website is under the creative commons licence 3.0 BY-NC-ND, the details of which can be found on the contact page of the multidimension.net website.
For further reference, please visit the creative commons website.
A good place to find some freedom (libre) )software is the sourceforge website.
The diaporama slides presentations are in the freedom format (ODP) for libreoffice and also included in the compressed zip files are a (PDF) version.
The audio files are in the freedom format (OGG) for Videolan (VLC) in the compressed zip files.
Audio files list:
The video files are in the freedom format (OGG) for Videolan (VLC) in the compressed zip files.
Video files list: