I have had the 622 for less than a week and have been experiencing problems with playback and viewing live TV. While in playback the video will freeze and the audio will begin to skip for a second or 2 and then stop. If I rewind and replay the problem persists. The only way to continue is to fast forward past the defective point and resume play. I record about 4 hours per day and this happens at least once per day. Sometime during watching live TV the audio and video will skip for a brief second, much like it does during the playback problem, but it does not lockup. Is this a problem with the Hard Drive or a software bug?