Thanks for taking a look at my question. In the first instance apologies for any confusion I may cause as I am gratefull for any fedback. The question is this: Having bought into Sonos (Connect) now connected to my NAD 3130 streaming itunes through a Virgin Super Hub 3. I would now like to introduce a NAS with possibly a synology case. I prefer to go with used ebay synology case, what disks should i buy and how mnay one or two, I have a spare macbook air for back. Any help gratefully appreciated.