Some camcorders have a transfer feature. But let me tip my hand and show a few cards. Part of my work over the years was in the code and design of DVRs so these could corrupt a card/drive and the recovery can be very expensive.
I suggest you fit a new card, format it in the camera and carry on. If it does it again, replace that device since many are buggy.
Bob
i have a video recording device that uses a micro SD card.
Earlier this evening, i had the card hooked up to my computer and was copying the video files onto a portable hard drive. Part way through the transfer, i started getting error messages informing me that the files could not be copied because they were no longer there.
i cancelled the file transfer, then tried to start it again, and this time none of the files would copy, not even the ones that had copied previously.
So i removed the device and reconnected it, and sure enough, now none of the files were there. The hundred or so video files that had just been there were now replaced with three files, one that has no name at all, one that is just an arrow pointing upwards and one that is USBC followed by a bunch of strange characters that this forum will not allow me to post. The file that is the arrow pointed upwards has no file size, but the other two files are fairly large, totaling about what the missing video files were.
i tried running Recuva. It found quite a few older files, but none of the ones that were just lost. Any idea what can be done to recover the video files?

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