home-sharingitunes
This is the idea: if I move my iTunes library to a NAS and enable Home Sharing, will this feature continue to work if I then turn off my PC?
I would like my Apple TV to access my music and videos but without having to keep my PC running, ideally only the NAS should be running. Is there any way this could work?
On the computer
On the iDevice
To Use
I've got this same situation going at home; two computers with separate iTunes Store accounts, an AppleTV that pulls content from both of them, and iTunes Home Sharing turned on.
The automatic syncing behavior is optional and, I believe, opt-in. When you turn on Home Sharing and select it in iTunes, you'll see this down in the bottom right corner:
When you click the "Settings" button, you'll see this window:
As you can see, you have plenty of options. Simply uncheck the things you don't want automatically synced, and you're good to go.
Best Answer
No. Home Sharing uses mDNS (Bonjour) to advertise. Without a running iTunes instance for the share, it won't be available. Your NAS may have a DNLA server built-in which could make the iTunes library on it available though.