I have this same problem with my camera. This JVC unit is junk. It has never worked well and this stupid "drum error code" is really a bummer. I think I have forund the solution, ... if you bought a JVC camera you should imediately deposit it in the nearest landfill site you can find, ... and then immediately replace the JVC GR-DVL300 with a Sony camera. I have run out of energy for all my electronics failing. Nobody wants to build anything really well anymore, ... or if they do build it really well it makes them stick out so far that they can justify the high prices they charge. Every piece of Sony gear I have ever bought still works ... and I have a pile of gear from other manufacturers, ... like Denon, Panasonic, JVC, Electrohome, ... all junk. Get smart ... pitch that camera in the garbage where it belongs and make sure to tell all your friends how happy you were with it, ... then get a Sony and be happy. Life is too short to own a JVC camera. A few nights back, ... I had these two really hot chicks come back after the bar, ... and they were so drunk & horny they started touching each other on the couch, ... then they agreed that I should video tape them having sex, ... and this stupid E04 message came up on the camera, ... and I couldn't video the show, ... and my memory of the event is fuzzy, ... and I really really would have liked this stupid frikking camera to work. Better Days ... I'm buying a new Sony. Like I said, every single Sony product I have ever bought still works. JVC ... To the Dump, Dump, Dump.

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