I accidentally erased a 90 minute wav file of a live musical performance. I had mixed it down, but two minutes from the end of mastering, the 008ex told me the 16gb card was full. In erasing other songs (which I did on the computer) to make room, I apparently erased the file I had recorded. Is there any way to retrieve that wav file without paying somebody huge bucks to do it? I have both a mac and windows machine to do it. Any help would be greatly appreciated.