Sorry, I didn't notice it was talking about format the card in computer, I
never did that. So far for all CF cards I use personally does not have one
failure. BTW, I switch card every two years or so, the old ones were give
away with the camera I sold. I will not buy extra memory card if not
necessary, now I only use one 8G CF for my 5D II, it is good for one day
use. If I'm going to a longer trip I will purchase another 8 or 16G and
bring a notebook for image backup.
C.H.Ling
----- Original Message -----
From: "C.H.Ling"
>I don't think format in camera will add any wear to the card, it just erase
> the directory information. I do format instead of 'erase all' 100% of the
> time in E-1, 5D II and C5050... They are very fast, I remember format is
> even faster than 'erase all' in one or more of them.
>
> C.H.Ling
>
> ----- Original Message -----
> From: "Moose" <olymoose@xxxxxxxxx>
>
>>
>>> 6) periodically, format the card in the computer being sure *not* to
>>> choose "Quick Format". If you do a full format it will write to and
>>> verify all storage locations on the card.
>>
>> I think this is absolutely unnecessary and wastes flash card life.
>> Remember, a CF card (and SD(HC)?) has a built in controller with wear
>> leveling algorithms. It stores data according to its own rules, which
>> aren't linear, and translates actual memory locations to virtual mass
>> storage device location data for its interface, so the camera/computer
>> has no detail control whatsoever over what's actually on the card and
>> where it's stored. All a complete format in the computer does is add one
>> more wear cycle to the card. Anybody still using a CF HD, sure, go ahead.
>>
>>> Then do a format in camera to restore the camera's file structures.
>>>
>>
>> Yeah, if it makes you feel better. I haven't done that in years, since I
>> figured out that all the warnings were based on poor OS implementations
>> in a couple of brands of camera.
--
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