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[OM] Re: formatting

Subject: [OM] Re: formatting
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>
Date: Wed, 12 Jul 2006 09:11:17 -0400
In addition to formatting the media the camera also creates some 
specific folders after the format which it uses for images and other 
info.  Unless those folders are there the camera may not recognize the 
card.

It would also be possible using the computer to format the card with 
other than a FAT-16 or FAT-32 format in which case the camera would 
never recognize the card even if the correct folders were put there. Or 
a FAT-32 format might be used on a camera which only undestands FAT-16. 
Or, even if the camera recognizes both FAT-16 and FAT-32 the computer 
created format could change other disk parameters such as sector and 
cluster sizes which would be unrecognizable to the camera.  These latter 
things are less likely but possible.

The computer has and recognizes many more format parameters than the 
camera which is made fairly dumb to minimize unnecessary code and costs.
To be on the safe side never allow the computer to write anything to the 
CF card by either formatting or even erasing images.  There's no valid 
reason to do so.  It can only lead to trouble.

Chuck Norcutt


John Hermanson wrote:

> Would someone explain why formatting a cf or xd card with a computer 
> would render it unrecognizable when put into the camera?  A third party 
> wants to know.
> 
> ___________________________________
> John Hermanson
> Camtech Photo Services, Inc.
> 21 South Lane, Huntington NY 11743
> 631-424-2121 | Olympus OM Service since 1977
> http://www.zuiko.com  |  omtech1 AT verizon.net
> 
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