I am having a slight problem with my Panasonic dmr-e30,it has performed with no broblems until a few weeks ago.The problem seems to be playback and recording with the ram disk in cassette,out of cassette there is no broblem.When starting a recording the time counter starts and goes to 2 secs.then the machine shuts down with flashing red led.As I say it only happens with the disk in cassette,with disk out of cassette it does not happen.Has anyone any idea what might be causing this.