So, this evening all of the sudden my Time Machine backup disk said that it was full. I was checking around and for some reason the FileSync folder (under Library>>FileSync) is now taking up 62.66 GB. Earlier this afternoon, FileSync crashed and I click "report to Apple." and didn't think anything else of it. The specific file in the FileSync folder that is 62.66 GB is an iDisk File. Specifically JW008_iDisk.sparsebundle. Does anyone have a solution for me getting my lost hard drive space back? Can I just delete this file and free up the room? What exactly would this do? Thanks!