Intermittently, Power vcr continues to capture past its scheduled stop recording time. When it continues to record like a runaway train and runs out of disk space, the program crashes. Anyone else had similar problem?

I tried to fix the problem by changing the ending period to two minutes prior to next program starting time. For instance, if the next program starts recording at 3:00PM, I changed the current recording program's stop time to 2:58 PM. However, that solution didn't solve the problem.

Any suggestions out there?