[filmscanners] RE: No more Kodak CD-R's

["Laurie Solomon" <laurie@advancenet.net>]

>But most photographs are compressed and not all compressed formats can
>handle bit errors, i.e. usually resulting in a complete loss of the image.

While I understand and can accept that not all compressed formats can handle
bit errors resulting in a loss of image, I have to wonder about the
assertion that "most photographs are compressed."  While no doubt many are,
I think it questionable that the figure of archived photographs - let alone
unarchived ones -would come anywhere near comprising most.

-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Robert Meier
Sent: Thursday, October 24, 2002 1:37 AM
To: laurie@advancenet.net
Subject: [filmscanners] RE: No more Kodak CD-R's




>-----Original Message-----
>From: filmscanners_owner@halftone.co.uk
>[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Anthony Atkielski
>> If the bad bit is in an in an executable, it
>> can certainly wreak a lot of havoc.
>
>Photographs are not executables.

But most photographs are compressed and not all compressed formats can
handle bit errors, i.e. usually resulting in a complete loss of the image.

>> We take it for granted that our computer data
>> will be written perfectly, but it is quite
>> remarkable when we think about how many bits
>> are shuffled around when in file copies, installs,
>> backups, restores, etc.
>
>Yes.  It still is written perfectly, though.

You gotta be kidding. If it were written perfectly there wouldn't be any
need to have error correction codes.

Rob

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