Help Extracting .aud files?

Command and Conquer 95/original/tiberian dawn whatever you wanna call it. I have no idea what the hell im doin. But this is what i have done: (Directory; Which is C:/WESTWOOD/C&C95 and get the "sounds".MIX file. I then use a program called Dragon UnPACKer v5.6.0 Exedra. I open the sounds file on this program and everything is .aud. Now i want to save them and hear the audio pieces but for the life of me; Cannot. Like i double click the certain .aud file and it says "cannot preview" WTF? Help!