[GTALUG] War Story: Asus UX305ca SSD failures

[Russell Reiter]

On Fri, Aug 9, 2019, 8:58 AM James Knott via talk, <talk at gtalug.org> wrote:

> On 2019-08-09 08:03 AM, Russell Reiter via talk wrote:
> > This problem is amplified by making a copy of a copy of a copy etc.
>
> That is certainly the case with analog, but with digital the copies
> should be exactly the same, even if on a different media.
>

There is a possibility that keeping your photos in raw form will protect
from major copy errors, but in all situations of moving bits in a data
stream, there is the possibility of transient error. Jpg was considered
lossy as it could not fully recreate the the full raw data. 25mb or more
of raw image data per image is, or was, a hefty size to move across the bus
in early days, much less across the internet.  Now we have so called
lossless JPEG, however its accuracy is based on predictive sampling rather
than a pure collection of bits per pixel.

https://en.m.wikipedia.org/wiki/Lossless_JPEG

Humans lose thousands of skin cells a day, yet the fabric of the persona
stays the same. I think photo data is a little the same, a few stray bits
lost here or there won't change the picture that much. However it is
possible to corrupt that significant bit which would make decoding the
picture impossible.


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