I believe that, in my case, it's NOT a battery issue. I've been monitoring the battery level throughout my trial recording run, at it had nearly-full battery level for the entire time it was recording, as well as after it decided to stop recording. Also, I bought my unit early this year, and haven't used it much except when recording at live events and then listening to them occasionally ... as far as I know, my unit is probably the *least* used unit in this forum. So it really can't be a power issue. Anyway, I'm really bummed ... tomorrow I'll try using a new blank minidisc from a different brand-- it may be that the batch of minidiscs I just purchased (Memorex) is defective, so changing brands might do the trick. I'll let the forum know the results of my experiment.