Got a 64gb card on the way, and wanted to back up my 32gb with CMA. The Vita connects fine to my Mac and I have plenty of space on my hard drive for the 30gb back up...yet it crashed 20gb into the back up. The vita locked and when I swipe to unlock, a message says that the pc has been disconnected. Figuring it was maybe my fault for letting it sleep, I deleted the back up file that didn't go through, and tried again making sure not to let the vita go to sleep. The back up still failed, and again at around 20gb's into the back up. Is it because of something that is on my memory card? This is my first time trying to do a back up or upgrade to a bigger memory card.