I just got my replacement macbook pro, and copied all my data over to it. When I went to set up Time Machine, I noticed that by default, it wants to create a new backup sparse bundle. Is there any way to either use the prior one or merge the old and new ones together? Rant: I find it crazy that getting a new computer means losing 18 months worth of backups. I called Applecare about this, and their responce was create a new backup and then if you need to you can connect to the old backup in a read only mode. The guy on the phone made it out like this is the best way to do it, new computer - new history of backups. Why is this better? I mean, the time machine file i was using was 550GB of data. My home folder is 400GB of data. So that means to backup anything new (which for arguments sake, we'll say is 15GB) I also have to backup the other 385GB. So now instead of the total backup size being 565GB it is 950gb - 385GB double backed up. This seems like a very amateurish method of implementation, as if the easiest way to program the backups was new computer new backup. The path of least resistance is not the method of best backup solution.