Oddwunn,
Like you, I was getting stuttering and dropped audio when streaming some files off unRAID, particularly those with high data rate encodes. I enabled NFS as a quick and dirty test because I read it plays better with media boxes, which typically run Linux. It worked and I haven't bothered to set it up "officially." Here's what I did:
1) In the standard unRAID 4.7 webgui on the Shares page I enabled NFS for the shares only, not under Export Settings but under User Shares instead. For each share I wanted NFS access to, I added "*(rw,insecure)" in the Export(NFS) box and clicked Apply. (I didn't know if the media box needed to write anything to the share -- it appears that the HiMedia/Micca boxes don't.)
2) On the HiMedia/Micca box, I clicked File Manager - NFS - AutoScan (File Manager - Network uses SMB). The box flashes up the message, "Start Searching NFS Shares!" If you press the OK button on the remote again while it's searching, it'll flash the message, "Searching NFS Shares is Ongoing!" After a few seconds it'll flash the message, "Searching NFS Shares Finished!"
3) With AutoScan still highlighted, press OK on the remote again. AT that point I see a list of the shares I exported as NFS. Highlight the share of interest and click OK as many times as it takes to navigate to the file of interest.
So all I did was export some NFS shares. I did nothing to the SMB shares, so a Windows PC continues to be able to access them as well. At some point I should figure out how to access the shares via "ShortCuts" so I don't have to do the scan each time I power on the box.
Ken