Weird Time Machine behavior

Sep 25, 2011
Reaction score
San Antonio, TX
Your Mac's Specs
MacBook Pro 13"(Early 2011) 2.3 Ghz Intel Core i5 Mac OS X 10.8.2
I haven't backed up my computer in almost a week so today I decided to plug in my external and do exactly that. When I did, the back up didn't start automatically like I usually does. I didn't think too much about it. Since it didn't start on its own, I went ahead and started the back up myself, but when I did this it said that it had a total of 54 gigabytes of new things transfer! I don't see how this is possible, there is no way that I put that many things on my computer in a little less than two weeks. At most, I've put maybe fie gigabytes at the most. Well after all this, I looked at my iStat and found something new. A volume called Mobile Backups. Does anyone have an idea of where the 54 gigs could have come from, or what the Mobile Backups volume is?

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