I was working in windows using mac drive last night and i opened a dmg which I found out later was corrupted. It didn't open in windows, and windows hung to the point that I had to do a hard restart. Once everything booted back up (it took forever, btw), I found that one of my HFS drives (not the one I was working on at the time, oddly enough) had disappeared from both windows and osx. I cannot see the actual drive in device manager or disk utility, and things like diskwarrior and data recovery 2 don't see it either. I know it sounds like the hard drive failed, but is it possible that a software crash could cause the physical drive to completely fail?