Red Alert 3 File extraction
 

Hi,

I want to extract the .big files from Red Alert 3. So far I succeeded with finalBIG to extract some files. I want to have the speeches from all units and co comanders. The problem is, I get files like xxx.cdata. Dont know how to open it. Then I get the xxx.snd file. Opening it isn't the issue. It's that they have a sort of noise in them. Is it protection or badly extracted? I don't know anything about sound and edditing it. I've opened the .snd file with Awave studio.
So does anyone know how to remove the noise from the sound files?