Hi, I have an old-ish Canon MV700 Camcorder. And till recently its been fine. However, all of a sudden it is refusing MiniDV tapes. When i put a tape into the tape compartment , it wont even take i into the camcorder, i press the tape down, it sits there for a while and pops back up. If there is no tape the compartment will retract back into the camera with no problems. Can anyone help?