Data Recovery Case File · Memory Cards · Filesystem Corruption

"You need to format the disk": a working photographer's 128GB card, 17,000 photos, and a paywall full of previews

Early in a photography career, the archive is the career — and this customer's whole recent portfolio, around 17,000 JPEG and RAW frames across many shoots, sat on one 128GB card that suddenly refused to open. Recovery software could tantalisingly preview the images, for a three-figure fee to release them. She asked us, sensibly, what the job actually was and what it should actually cost.

The enquiry

“My PC is not reading my SD card — it says it cannot be opened and will need formatting. The card has around 17,000 photos, JPEG and RAW. There's physical damage to the shell but not the chip part. The files can be previewed via an SD recovery site, but it's £129+ to recover online. I'm a young photographer and the card has many shoots on it that I need saving.”

Decoding the two messages she'd received

The format prompt first: when Windows says a card "needs formatting", it means it found a device but couldn't make sense of the filing system on it — the index is damaged, not (necessarily) the photographs. It is an offer to erase, phrased as an offer to help, and declining it — as she did — is the single most important decision in any case like this. The preview paywall second: software showing her thumbnails had proven something genuinely useful — the card still reads, and the image data survives — but scanning a card of unknown health over and over while a customer decides about a fee is not a neutral act. Every full-card scan is a full-card workout, and cards that have started misbehaving don't announce how many workouts they have left.

The recovery, done in the right order

The rule that separates lab practice from software-on-the-kitchen-table is: one read, then leave the patient alone. The card went behind the USB Stabilizer — insurance against the mid-job dropouts misbehaving cards are prone to — and was imaged completely, once. Everything after that happened to the image, with the card itself retired to an anti-static bag, its cracked shell now irrelevant.

On the image, the damage resolved into the expected shape: the volume's directory structures corrupted, the photo data behind them substantially intact. Working in Data Extractor, the filesystem was reconstructed from its surviving structures — recovering not just the frames but the things a working photographer actually needs around them: original filenames, the folder-per-shoot organisation, and the JPEG/RAW pairings kept together rather than dumped as 17,000 loose files. Verification sampled across every shoot folder: RAW files opened in full, not just as embedded thumbnails, because a preview proving a file exists and a file that develops cleanly are different promises.

Outcome

The full archive — all shoots, pairs and names intact — delivered for a fixed, quoted price agreed before work began, which is the only way we price anything. The card itself was retired with a clear conscience: a card that has both physical shell damage and a corruption episode has used up its trust, whatever a health check claims. And the portfolio now lives in more than one place, which is the real ending every one of these case files is angling for.

Our case files are drawn from genuine enquiries received by our laboratory over the past ten years, anonymised to protect client confidentiality. Each one describes the diagnostic and recovery procedure our engineers apply to that fault, using the equipment listed.