I currently have an external HD with two computers' Time Machine backups (so there are two folders inside the Backups.backupdb folder with TM backups). I would like to separate these so that they each have their own HD. I tried copying one of the folders contains one machine worth of TM backups to a new drive, but when I plugged it in and tried a backup, it ignored the copied backups and started a new Backups.backupdb folder. It seems that I can't move any files/folders in or out of a Backups.backupdb folder. Is it possible to get around this? What I planned on doing was copying both backups over and deleting one once the copy was complete to separate them (though it would be much easier if I could copy them individually). However, I can't seem to even delete these files. Can this be done?