Last night I was using Compressor to transcode a file. About 85% of the way through, Compressor crashed... and seems to have left a phantom temporary file about 100gb in size somewhere on my hard disk. According to my own math, and the math of several drive-cleaning software packages (Disk Doctor, OmniDriveSweeper, etc.), I should have 96.5 GB of used drive space. This is consistent with what I remember from last week. Yet OS X reports that I have used 199.61 GB of my drive space. Meaning somewhere, somehow, there is a phantom file somewhere roughly 100 GB in size. So... any ideas on how to find and remove this temporary file? It is cramping my style (and my hard disk ).