Unfinalized video miniDVD data recovery

Why did the camcorder think the disk door was open? There may be something wrong with the door latch or door open switch. Check the latch mechanism for cracked hooks (the plastic may be white right at the corners of the hooks - this indicates it was overstressed and is ready to crack if it hasn't already, that is, assuming it is supposed to be colored plastic). The latch switch is probably mounted on a circuit board - if the switch is good and the latch is holding properly, then the board mounting may be loose.

If you find a cracked or overstressed hook, you may be able to repair it with a drop of methyl ethyl ketone or similar solvent (observe safe handling precautions!). Leave the door open for a couple of hours to let the plastic harden before trying to close it. Then, make a habit of holding the release button down (assuming it is purely mechanical) when you close the door rather than simply snapping it shut. This will reduce the stress and wear on the hooks.

These are a few things to check before entrusting another critically important recording to this camera. Hopefully, it isn't as hard to work on as the mini-cassette units.