Thanks, after looking through the file, I've come to the conclusion you are running an unmodded game, which does help somewhat.
Ok, I want you to install the v1.1 patch if you haven't done so already.
Then, rename your scripts directory to scriptsOLD and then copy the scripts directory from the SDK so that it replaces the scripts directory (it should not say anything about overwriting files!).
PS.
I also discovered that there are far more sound related files than there are data (ships/textures/bridges) and scripts combined. :mrgreen: