I went to play a recording made last night and the audio started with the green smoke screen in the background freezing. The audio continued to play if I left everything alone. If I tried to fast forward, everything would stop for a few minutes. When it started up again, I could bounce all the way to the end and back again. I could do anything but fast forward. The green smoke screen stayed on in the background. It only happens with this recording, my other recordings work fine. Could this just be a bad spot on the hard drive? I have had this unit for less than a year. Thanks for your help.