I am running Compactor inside Parallels for Mac OS X on a WinXP Pro image. I left Compressor running overnight at the "Prepare to Compact Disk(s)" stage. This morning (6 hours later when it hadn't moved 1 block) I cancelled it, rebooted, and restarted the compacting process. It proceeded as normal to exactly the same spot: "Prepare to Compact Disk(s)" Hours later, it hasn't moved at all. What next? The total size is listed as 7.79Gb and free space is 3.73 GB.