SD card: video gone or damaged — the right order

In short: “Gone” and “broken” are two different problems with two different solutions — in a fixed order. If the file is still visible but won’t play, you repair it. If it’s vanished entirely, you first have to bring it back with a recovery tool — and then almost always still repair it. Get the order wrong and you make things worse.

Diagnosis first: gone or just broken?

Before you start any tool, settle a single question: can you still see the file?

• File is visible, but won’t open → It’s damaged, not lost. Jump straight to “Repair”.
• File has vanished (card empty, folder empty, “Format card?”) → Data recovery first, then repair.

This distinction decides everything. Most people make the mistake of reaching straight for a repair tool when a file has vanished — but it can’t repair something it can’t find.

When the file has vanished: stop immediately

First things first, and it’s inconvenient: take the card out of the camera and don’t write to it anymore. No test photo, no new recording, no “let me just see if it works again”.

The reason: a deleted or “formatted” file is usually still physically there. The filesystem has only released the reference to it. Any new recording can overwrite exactly those bytes — and then it really is gone for good.

After that:

1. Card into a computer (card reader, not camera USB).
2. Run a recovery tool like PhotoRec (free, open source) or DiskDrill over it. It reads the card byte by byte and pulls out whatever is still there.
3. Save recovered files to a different drive, not back onto the card.

Why the recovered video often still won’t play

Now comes the part hardly anyone knows in advance: recovery tools restore the raw data, but they don’t know the original file structure. The result is often a video with an intact picture stream but a broken or missing header (moov atom). The file is there, has the right size — and still won’t play.

That’s not a failed recovery. That’s the normal case. Which is exactly why there’s a second step.

We have a dedicated hands-on article on this: Repairing DiskDrill-recovered video.

Step two: repair

A recovered but unplayable video is exactly the case Haven is built for. It reconstructs the missing header from the picture stream — when needed with a matching reference from the same camera, already bundled for common models. The preview shows you before any payment whether the recovered file turns back into a clean video.

→ Repair a recovered video

When the file is visible but broken

Then you skip data recovery entirely. The card worked, the recording just wasn’t closed off cleanly — classically because the card was pulled during recording or the battery died. Copy the file onto the computer once (never work on the original) and go straight to repair.

Why SD cards drop out mid-recording in the first place

Some quick background so it doesn’t happen again:

• Card too slow for the camera’s bitrate (4K/high bitrate needs V30/V60/V90) — the camera cuts off when the buffer overflows.
• Card nearly full — many cameras don’t close the file cleanly when space runs out mid-recording.
• Cheap or counterfeit cards with a misstated capacity.
• Card pulled while the camera was still writing — the LED may already have been off, the write wasn’t.

What to avoid

• Formatting the card “so it works again”. That’s the surest way to lose vanished files for good.
• Letting recovery tools write directly to the card. Recovered files belong on a different drive.
• Pointing a repair tool at a vanished file. Recover first, then repair — never the other way around.

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Bottom line: The right order saves more videos than any single tool. Visible but broken → repair. Vanished → shut the card down immediately, bring it back with recovery, and then almost always repair the result. And in both cases: preview first, spend money second.