Category Archives: corrupted

Create a disk image of a SD Card or small USB flash drive

In this post I’ll explain how you can create a sector-by-sector disk image of a small USB flash drive or memory card using JpegDigger. This type if disk images are also referred to as dd or RAW image files. The disk image is an exact copy of each sector of the drive that was imaged.… Read More »

Repair MP4, MOV, 3GP, M4V, WAV, MP3 after STOP/DJVU ransomware

As most ransomware STOP/DJVU encrypts files to make them inaccessible. After you pay the ransom (in bitcoins), the attackers send the tools and information needed to decrypt your files and make them accessible again. The encryption is very hard to ‘break’ but ransomware researcher every now and then have success creating decryption software. Some time… Read More »

These 9 Sony memory cards might corrupt your files

Sony has issued a product advisory warning for nine of its SD memory cards, across three different product lines, that might damage your data. The cards, listed below, are at risk of corrupting your files when recording video, according to Sony: SF-M Series SF-M64 SF-M128 SF-M256 (Applicable cards can be identified by the presence of… Read More »

Recent changes to JPEG-Repair Toolkit

2.8.257 – May 19, 2025 update # JPEG-Repair, update fixes regression (“editing disabled”, failure to repaint screen after resizing window) introduced in 2.8.252 2.8.252 – May 5, 2025 update # JpegDigger bug with large drives (overflow) # JpegDigger YKUSH XS improvements # JpegDigger updated buy-now URL (MyCommerce went bankrupt) # JPEG-Repair fixes bugs with extracting… Read More »

Unstable SD card with bad sectors data recovery – freezing, locks up, read errors, disconnects

Recovering your precious photos from a SD card can be challenging enough after accidental file deletion or formatting. Recovering data from an unstable SD Card may prove to even more difficult. Recovering data from an unstable SD Card Many file, photo and data recovery tools available focus on file recovery. Their efforts focus on discovery… Read More »

JPEG-Repair, no SOS detected

A common error message that JPEG-Repair reports is ‘no SOS detected’. I have written several posts and made videos to repair JPEG photos in case the Windows photo viewers report errors: The old Windows photo viewer: File appears to be damaged, corrupted or is too large. The new Windows Photos: It looks like we don’t… Read More »

Alternative method for half grey or truncated JPEG photo repair

There are various examples on this website of repairs of half grey or truncated JPEG images. In those cases all image data is actually present, but due to an error or corruption only a part of it is visible. If data is simply missing because for example the file is partially overwritten or cut-off, repair… Read More »

Repair, Recover JPEGs encrypted by ransomware STOP Djvu

This article shows repair of JPEGs that fell victim of ransomware. This particular ransomware only encrypts part of the file. Due to this the JPEG header and some 150 KB of JPEG data are lost. Using a reference file and weeding encrypted data we can repair the photo.