[waldemar72]

if you can copy the archives in a .tar or .iso file and include it in an ftp or add it somewhere on the web.

If you are interested I have a 3.9.1 version of Softimage 3d
https://drive.google.com/drive/folders/1...sp=sharing

It's dump of my own cd

Hi, thank you very much it has worked on windows perfectly but IRIX does not start the installer because maybe only the installer works on CDROM Drive and the SGI Indy do not have, but anyway thank you very much. 

So download soft391.tar.gz archive from the same location, gunzip it, tar -xvf and run install program from irix directory. It should work. (works for me).

I see something weird. Strange filenames in software directory!
Here's correct list of files in this directory:

3DStudio.trz             Gifts.trz                SendScene.trz
Antibes-Shader.trz       LightEffects.trz         Setup
Blending.trz             MRhost.trz               SwiftMouse.trz
Center2Vertices.trz      Minerva.trz              Tutorial-Shader.trz
ChainBehavior.trz        N64.trz                  Vrml.trz
Converters.trz           OZ-Shader.trz            WaveFront.trz
Creative-ChnlDriver.trz  Particle.trz             cdinst.dat
Creative-Fonts.trz       ParticleCustoms.trz      crgk.trz
Creative-Rsrc.trz        ParticleSAA.trz          fxlight.trz
Creative-Tools.trz       Pfx.trz                  mr.trz
Custom-Shader.trz        Psx.trz                  mr19.trz
Dialog-Editor.trz        Rebel.trz                mr21.trz
Direct3D.trz             Reduction.trz            renderMap.trz
Extra-tools-3.51.trz     Saaphire-3D.trz          setup
Fiji-Shader.trz          Saaphire-Live.trz        simat.trz
GameCore.trz             Saaphire-SAA.trz         toonasst.trz
Gifts-plugin.trz         Saturn.trz

Please tell me how did you uncompressed archive provided by me?
Please download archive soft391.tar.gz to any location of you hard drive on a Indy.
Then open shell window (from toolchest menu System/Utilities/Start new console.
In console go to directory where you downloaded archive - use command cd /direcory/where/you/downloaded/archive - this is only example of syntax!!! Use your absolute path to directory where you downloaded it!
Then use command: gunzip soft391.tar.gz. - this will uncompress it and and inside this directory will create file soft391.tar
To untar it use: tar -xvf soft391.tar
It will create "temp" directory on your Desktop with absolute path /Desktop/temp.
From your Desktop go to this directory (just by double click).
Then go to tars.
Then to irix.
You will see licencin and software directories and file setup which is executable. Just double click it an installation will start - select software installation and go on!
I don't know what are files you showed on picture above but this is not what I shared!
Do not hesitate to ask. 
Do everything on your Indy! Not Windows machine!
Also remember! Use install program from irix directory, not software directory!