[nmglug] weird memory card behavior

[Rob Haag]

Also, if you have access to a windows box (and the camera is not formatting
it for you) HP has a tool for formatting flash memory. This link pops up
first in a google search
http://en.kioskea.net/download/download-127-hp-usb-disk-storage-format-tool...but
I always keep a copy too, if you want I can put it up in my dropbox for
download (so you could avoid jumping through hoops for a free tool), but
typically if I find myself using that tool I also find myself throwing a
'bad' card away quite soon, to avoid wasting time on it. As Nick says, they
go bad. The good part is that it's a bit easier to toss bad flash devices
now that they are so cheap :)

Rob H

On Fri, Feb 10, 2012 at 12:56 AM, Nick Frost <nickf at frostitute.com> wrote:

> On Feb 9, 2012, at 10:48 PM, Rob Haag wrote:
>
> > Check this out
> http://activerain.com/blogsview/1239207/memory-card-is-locked-error-message,
> this is what has given me the same situation...if the camera won't write to
> it then this is the thing to check first. The switch sometimes gets
> activated taking the card in/out of a device.
> >
> > On Fri, Feb 10, 2012 at 12:42 AM, BrianO'Keefe <okeefe at cybermesa.com>
> wrote:
> > It is fat32 according to disk utility and I can't alter it in anyway
> without getting a "read-only" error. I tried with GParted and disk utility.
> In disk utility I get the read-only or "the daemon is inhibited". I cannot
> format it in the camera without getting the read-only message.
>
> As Nick P. suggested…..if the write-protect tab on the SD card is not the
> culprit the card will likely have to be formatted in the camera once the
> pictures have been downloaded.   The problem with accessing SD cards
> directly (via a reader as opposed to the camera being attached to the
> computer via USB) is that if a write occurs the file system can be altered
> or damaged causing problems. Cameras usually use FAT16 or 32 but they are
> not what I would call "normal" FAT16/32 file systems if one looks at them
> with a disk editor. I've seen this (SD card file system problems after
> direct access) many times. Usually I recover the photos with PhotoRec
> (CGSecurity) on the nearest Linux box and re-format the SD card in the
> camera…..and if that doesn't work it's usually the SD that's gone bad and
> replacement has solved the issue.
>
> -Nick
> ---------------------------------------
> Nicholas S. Frost
> 7 Avenida Vista Grande #325
> Santa Fe, NM  87508
> nickf at frostitute.com
> ----------------------------------------
>
>
>
>
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