Custom Soundtrack

[Lor1k]

I can't use custom soundtrack in game. I renamed files and moved in SOUND, but then after start game just crushed with massage ''GMGEO1 is not found'' when this file is there. So how in last bild can I include in the game my soundtack?

[The Martian]

I am also interested in this information.

Edit:
From what I've read in this post 'How do I use custom music?' the steps you took should be enough to allow the custom music to run.

Did you configure your sound options in the main menu to use what ever file format your custom music is in?
(I seem to remember that being a fix for something similar in the past.)