Is Logitech Media Server running? On PC or MAC? Can you access the NAS files from the computer LMS is running on? If so I would expect that you could configure LMS to reference that location for your library source files and that you would access LMS normally from the TOuch at that point.
SP Touch can also access files directly as I understand it, perhaps even remote network files (not sure) but I have read that that scenario tends to be less reliable in general with SB Touch.
SP Touch can also access files directly as I understand it, perhaps even remote network files (not sure) but I have read that that scenario tends to be less reliable in general with SB Touch.