I am Desparate!

Started Nov 20, 2017 | Discussions thread
David Lal Forum Pro • Posts: 10,294
File fragmentation?

Huyen Olson wrote:

The thing is, I did not delete, but instead, I reformatted the card. The funny thing is, Wondershare only recovered quite a few RAW images but not all. I wondered why!

I'm not an expert on this but I think the reformatting probably expunges the file allocation table rather than wiping the disk thoroughly. Recovery software looks for related file fragments and puts them together to rebuild the FAT.

Some files may have originally been recorded as more or less contiguous data (easy to recover) whereas others may have been spread in many different physical locations on the disk. In the latter case I can imagine ends of file markers not being found so resulting in apparently enormous files.

The foregoing may be nonsense!

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