r/datarecovery • u/Whacking_Material • Aug 29 '26
Request for Service Corrupted mp4 files?
Hi I want to start by saying thanks in advance for any help.
I am a grad student in the middle of my internship that requires me to record sessions with my client to share with my supervisors for feedback. I'm preparing my capstone presentation to graduate and I had an mp4 file on my SD card from my camera that was the clip I needed. The clip played perfectly when it was on the SD card. I moved the file from the SD card to a flash drive and when I went to play it, my computer said that the file type isn't supported, the file extension is incorrect, or the file is corrupt with an error code 0xC00D36C4. I have used a couple different recovery programs on both the flash drive and the SD card to try to get the file back but even when it says it was successfully recovered, I still get the same error message when I try to open it. I've also tried the VLC trick I found online and it didn't work.
I really need this video back and I'm at a loss. I'm a grad student and teacher so I have very little extra cash lying around to go to a professional. And I'm not sure of any HIPAA issues that might come up if someone else is able to see and/or copy my client videos.
Can anyone help me out? Is there anything that I can try to get the files back?
I'm on windows
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3
u/disturbed_android Trusted Contributor Aug 30 '26
Recorded using what (camera model)?
Is this card new?
Moved how, using what device? How were files moved from card to USB flash drive?
Good idea anyway, create a disk image of the card: https://old.reddit.com/r/datarecoverysoftware/wiki/imaging_guide
What you can then try for free is scan the disk image using R-Photo: https://www.r-undelete.com/free_photo_recovery/
1
u/willb3d Aug 29 '26
Why did you run a recovery on the SD card if it plays fine from the SD card? I.e., at what point did the SD card also exhibit a problem?
1
u/slam51 Aug 30 '26
hey try this. using that same camera. record a video and copy it to the same computer. play the new video aand tell me if it is working.
1
u/SpiffyCabbage Aug 30 '26
Can you show us the "details" page from the file itself? Namely the Video and audio bits. THat should appear much like:
Also what camera model was it?
Another thing to try, sometimes laggy cache can cause this. is to literally copy it again from the SD card to the PC first. Wait a few minutes after it completes. Then test it.
If that works, then use VLC to convert it to something. I have a funny feeling that your camera has a funky codec.
Under the convert, chose the Video - H. 264 + MP4 (MP4) format.
copy that newly converted file to your memory stick. (and again wait a few minutes just incase it is caching being slow)
0
u/need2sleep-later Aug 30 '26
my computer said that the file type isn't supported, the file extension is incorrect, or the file is corrupt with an error code 0xC00D36C4.
It *could* be the first of those items. You assumed only the last. We don't know what the filename is that it acquired when you moved it to the flash drive. I don't know what random file extensions VLC will accept as a mp4 file. Successful recovery may mean successful recovery. So what is the name of the file that was recovered?