My R-10, which i bought in Jan 2005, freezes up about once every week or 2, usually in the buffer mode, never that I can recall, in the recording mode. In fact, one time it froze in the buffer (or live) mode while something was recording on the other feed. Interestingly, it never stopped recording that feed until I finally restarted the unit. I learned this, of course, after the fact. Usually, the R10 freezes up when I "exercise" it, constantly using the 8-second return button to review sports plays, for example. However, I'm pretty sure it's never frozen on actual recordings. Perhaps the key, I suppose, is to simply record every live show that I'm going to "screw around" with. It never freezes "by itself", only when I play with it. I just wondered if there was another way to allieviate the problem without doing a hard restart.