SD Recovery

Recovery from SD memory chips

SD memory chips are one of the most popular used in digital cameras. They are normally very reliable, but occasionally photos can be lost through corruption, or physical failure. Cnw photo recovery software will recover all possible photos from corrupted chips

Video recovery

    SD memory chips are often used for video recording in cameras.  CnW Recovery is possibly the only mainstream recovery program that will work with many types of camera to recover video files that do not need to be repaired.  Popular examples include GoPro (.MP4), and Canon EOS (.MOV)  files.  Download the demo to try.

Corruption

    The most common form of failure is due to either logical corruption, or accidental deletion.  The corruption is typically the FAT map is overwritten with a file.  This can be caused by a hiccup in the camera, or when the chip is moved into a card reader.  The result is that the chip is recognised, but the error message that the chip is not formatted will be displayed.  The CnW Wizard will analyze such a chip and probably suggest a Raw recovery.  At other times it may manage to recover enough information to perform a standard read.  Fortunately, if a Raw recovery is required, the software will generate file names based on the camera name, and date of the photo.  This will make sorting very easy.

    CnW have come across chips where individual bits had failed. In this mode the automatic verification and correction of the FAT table made a significant improvement to the quality of recovery possible.

 Physical failure

    Physical failure is rare, and it can occur in two ways, a complete failure, or just a few sectors.  If a memory chip can not be recognised by the computer in anyway, then it could be a complete physical failure, for which there is nothing that can be done in software alone.  Before giving up though, one should always try a new card reader.

    Partial failure is when a few sectors fail.  For this CnW photo recovery software is very tolerant at reading and many photos will be recovered

    For complete failure, CnW does run a ‘chip off’ service.  The device is taken to bits and the memory chip unsoldered. Typically - but not always - the apparent failure is with the interface chip rather than the memory, so recovery of data is often possible.

 

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