How the problem could be caused by dirty tape heads if the camcorder works fine until it warms up. As i wrote it might work fine about half an hour. First when the problem starts there may be interference (mosaic on some part of picture) sometimes and when the playback goes on the interference is increasing and there is also breaks on audio at the time of interference on picture. If it is something mechanical, is it worth to repair because costs can be so high that new camcorder (same level) is cheaper? However my email: Hannu.hanhi@hotmail.com