Hi - first time post - recent convert from the dark side to Macs and still getting used to the different OS! Of course, I am comparing to PC - but on my old XP set-up, my music collection was on an external HD (where it had to be due to crashing!!) When I launched iTunes, and imported Library, it would store information about where each track was on the external HD but in a local folder called iTunes Library - but obviously not the tracks themselves. This meant the iTunes library for my 100GB external HD music collection would be a few MB in my local music folder - perfect! However, on My Mac, I want to copy my music collection off my external HD, and into my local music folder (I want to use my external HD as a Time Machine - the way it should be used!) on OS X and I have done this, then i booted up iTunes, imported the library, but it's created a copy of each and every track!! So my local music folder is now 200GB! Have I done something wrong / different? Or does it do it differently on the iMac?? Also - because my external HD is NTFS, all of the folders copied onto my local drive are "locked" - sort of "Read Only" - I know how to unlock them - but only individually - I cannot go to the folder above ("Music") and unlock this one - then "apply to enclosed items" like you can do on a PC cos it just doesn't seem to work... Any ideas how to resolve these 2 issues please? Many Thanks!!