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Resolved Question

Weird Problem With Micro DC Card

May 28, 2014 9:06PM PDT

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?

Discussion is locked

jrw78 has chosen the best answer to their question. View answer
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Clarification Request
What is this video recording device?
May 29, 2014 3:29AM PDT

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

Best Answer

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Re: USBC
May 28, 2014 9:21PM PDT
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Re: USBC
May 29, 2014 3:25AM PDT

Man, this just keeps getting worse. Both of those solutions looked promising (thanks so much!), so i plugged the SD card in and now it's telling me "You need to format the disk in drive F: before you can use it. Do you want to format it?" Obviously i don't want to format until i get my files back. So i tried running chkdsk anyway and it says "The type of the file system is RAW. CHKDSK is not available for RAW drives." Any ideas what i can do now?

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Answer
It happens...
May 28, 2014 10:43PM PDT

It seems the storage device/media got hosed. This isn't peculiar to any of the various media out there, it will happen sooner or later. If you've repeatedly used that SD card, it got corrupted over the same storage area unable to recover from R/W access. If not the area, the the minor FAT that lists it all. You can google away but usually in such cases, recovery is slim to none. It's already too late though you can try any of the free recovery s/w out there. I see you tried Recuva and it got little rsults, if that didn't help it's pretty grim. i offer looking into:

http://www.pcinspector.de/?language=1
http://www.flashbackdata.com/ <----- a service or any similar

tada -----Willy Happy

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Answer
I like recuva and such
May 28, 2014 11:52PM PDT

But one of the rules about memory cards in cameras is a simple one that when broken has folk posting like this. There's a second rule. I'll end with these rules.

1. Format your memory card in the camera you will be recording on.
2. Format your memory card in the camera you will be recording on about once a year.

Bob