Can you get itunes to work without having the pc switched on??

    Can you get itunes to work without having the pc switched on??

    Anyone know if you can get iTunes to work without having your pc switched on? So everything working well, iTunes folders and files all on the NAS and works well when the pc is switched on and iTunes loaded. the way I've done it is to create it as a drive on the home pc and link iTunes to it in preferences 'iTunes media folder location'. What I want to know is can I get things like my ipad or iphone to connect to it without having to have my pc on and iTunes loaded??

    HELP!!
    thanks