I've read many post in which people wanted to back-up their library on an external hard-drive. What I want is to keep my laptop's library as it is, but using my Lacie firewire hard disk as it were an ipod or a shared library. I think the solution will come by putting a new "itunes library.xml" into the hard drive. But i've tried many times and it doesn't recognices my hard drive. Anyone knows how to solve this problem? Thanks.