I have been extremely pleased with this unit, very versatile, BUT ... just a few days after end of warranty, recording has begun to mess up. After 30-60 minutes, the picture starts rolling, or maybe recording just stops. Once, just blacked out. But sound continues OK, even when picture is rolling. Obviously, supplier doesn't want to know, and LG e-mail says 'could be a faulty unit'. Any suggestions? Repair would be more than a new unit at current prices.