I agree, 60GB is nothing considering that I was capturing HD.
But, the problem is not the temp files that may be created, but that the hard drive seems to have lost a corresponding amount of its capacity. Whereas before, My Computer indicated a capacity of 130 GB with xxx free, it now gives a capacity of 70GB with yyy free. The lost 60GB must be hidden/system files because they don’t show up when searching with Windows Explorer.
