I have a JVC DVL-157E. I have had it for two years, use it infrequently. This week it developed an odd fault. When I record it seems to be doing all the right things, but when I attempt playback it just shows the blue screen as if I haven't recorded anything. I must admit that I haven't used a headcleaner in all the time I have had it so I did that which made no use. The camera was giving some message about removal of the battery pack so could this problem be caused by a dodgy battery pack which needs replacing, could it do this sort of thing? Any advice really appreciated, as I tried to get the Dixons staff to assist me but they had as much tech knowledge as a strained tea bag!!! I am a novice user and I hope this is not ssomething really serious as I have not used the camera much!!!!