Never tried to use NFS serving the files. What are you using for the server? I've had no problems using the rioreceiver server software, I think you can find it on empeg.com's ftp site. I've also had some luck using some linux package to serve up rioreceiver compatible data.

If the server is on a different subnet than the player (rioplay) then chances are it won't find it. Don't remember if there's a way around this in editing the code or not.

g