Hey Hawkeyemark1,
You can add them in the shared files section of the Client..since I am unsure if your using 3.53 or 3.54 the best thing is to have you go to Settings > Library then add the new file type there.. .wav
then its easiest with 3.53 to just refresh shared files.. and to remove and reshare the folder they are in on 3.54 ..
Hope this helps..
[useless trivia about me] Hawkeye was my most favoritest character on MASH growing up[/end useless trivia about me]