The fact that your drive is read only kinda bothers me. Since time machine backs up EVERYTHING, it can get pretty big. and there are files that time machine is backing up that I don't want backed up. Like download programs which I have another drive I use to back up that information. I wish I can go back in TIME and delete the file I want to delete so it doesn't ever show up again in time machine. is that possible? Im trying a test with a text file I wrote since when I first got my computer. I can't get rid of in time machine and its taking up space on my drive. (i have a 160 gig portable drive of which 50 gigs was allocated for time machine).