Actually what i wanted was a backup copy of my Itunes music library.Im a bit confused when you say it will not be a working Itunes library.Could you explain please?If I just copy the itunes folder and something happen to my Imac could I not just plug in the thumb drive to a new Imac and put my cds into itunes on a new machine?
There have been some people posting, usually with an MBA and a small(ish) SSD drive, who want to remove their iTunes library from their computer - typically onto a thumb drive.
If you just copy the music folder, all the music is on the thumb drive. You can take it to another computer, start iTunes, and use "Add to Library" to add all or parts of the music. However, all your play lists, ratings, play counts etc. will be gone.
The instructions on that website move your music to the thumb drive, and change your library to look for the music on your thumb drive, so you can delete the music on your computer.