Hello, Two (related) questions: (1) I'm currently doing an initial Time Machine backup onto a new external HD. I've never use TM before, and I would like to use the external HD for both backups and also other files for which I won't have copies on my computer, such as maybe my iTunes library. I read somewhere that this works best if the drive is partitioned. Is that necessary and how is it done? Does the partition have to be done prior to starting the backup process; I'm already well into it. (2) If TM backs up, say, my iTunes library and then I delete iTunes from my computer, will the next incremental TM backup leave those files on the external HD or will it delete it because they're no longer on the computer? I'm guessing the answer is that it would delete it, and that's why I need to keep the TM backups somehow separate from anything else I want only to exist on the HD. Thanks in advance.