I see a lot of people here mention having a WHS (or other server) and running iTunes from it, turning on Library Sharing so that all devices can access it's library (iPhones/Pads/Pods), MacBooks, AppleTV etc etc. Seems like a great idea, and something I'd probably like to do in the future. Question is, how is the library maintained? In my set up, iTunes is run from my MBP, and the actual content sits on my NAS, but all the controlling is done from the MBP (ie, adding new music, deleting old, changing metadata, etc). I can either drag new music as I rip it on the MBP into iTunes (or rip with iTunes of course) or drag a folder of AAC/MP3 files into iTunes, or the Automatically Add To iTunes folder for it to add to the iTunes library (the actual files are written to the default iTunes Media Folder which is on my NAS, and if I want to move/delete etc I can do it from the iTunes interface on the MBP, as that's the "master library" if you like) So how do you do it when iTunes, the "master library", is running on a WHS or other server?