Isnt the life generally a thousand re-writes or
something like that?
--- Winsor Crosby <wincros@xxxxxxxxxxx> wrote:
>
> They have been known to unexpectedly fail, however.
> It is not often,
> but it happens. So not all is wonderful.
>
> It sort of makes a good argument for buying the less
> expensive
> smaller ones. Not as much will be lost with a
> failure. Or get the
> large ones now with the idea of moving into a 24MP
> camera next year. :-)
>
>
>
> Winsor
> Long Beach, California, USA
>
>
>
>
> On / June 11, 2007 CE, at 12:02 PM, Moose wrote:
>
> > John Hudson wrote:
> >> I use 2GB compact flash cards with my E500. I
> shoot in RAW mode.
> >>
> >> I use a Verbatim MicroDrive and Windows Explorer
> to download the
> >> images to
> >> my PC and then use the Olympus software to
> process the images. I
> >> delete all
> >> images from the card excepting only the last one.
> >>
> >> Does the compact flash card have a finite life in
> terms of the
> >> number of
> >> images that can be written by the camera? If
> there is a finite
> >> life how many
> >> images can be written by the camera before the
> card dies?
> >>
> > Yes, they can wear out
> > No, it won't happen in practical use.
> >
> > The individual bits in flash memory have a limited
> life. In fact,
> > the on
> > card controller distributes writes across the
> whole card, so the
> > bottom
> > part won't wear out first.
> >
> > However, the number of cycles is so high that the
> chances of any
> > heavily
> > working pro wearing one out before it becomes
> technologically obsolete
> > is nil.
> >
> > From the Wikipedia entry.
> http://en.wikipedia.org/wiki/Flash_memory
> >
> > "With these mechanisms in place, some industry
> analysts have
> > calculated
> > that flash memory can be written to at full speed
> continuously for 51
> > years before exceeding its write endurance, even
> if such writes
> > frequently cause the /entire/ disk to be
> overwritten. This figure (51
> > years) involved a worst-case scenario using
> specific data
> > parameters and
> > should not be confused with a particular "shelf
> life" for a flash
> > memory
> > device. The bottom line is that a typical user
> using a commercial
> > device, such as a camera, with a flash drive will
> probably not wear
> > out
> > the memory for the effective life of the camera."
> >
> > Moose
> >
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