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On Thu, Feb 5, 2009 at 11:28 PM, Iain Buchanan <iaindb@××××××××××××.au> wrote: |
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> Hi all, |
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> |
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> recently my SD card just went bonkers. Unfortunately I lost a lot of |
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> photos on it (backups are useless until the data actually gets to the |
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> backup...) but fortunately I was able to use a program to recover about |
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> 170 photos. |
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> |
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> Anyway, I don't know if it was just static, shock, dead card, or phase |
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> of the moon, so I would like to see if the card is good before I |
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> continue to use it. |
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With any kind of memory or storage device, I would stop using after |
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the first sign of a problem. My personal experience says it only gets |
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worse. :) |
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|
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Lexar has a free program for recovering corrupted/deleted files from |
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their cards, did you use that? Or something linux-based like photorec? |
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Anyway, you wrote over it so it's too late now. :) |
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I would try any kind of "torture test" you can think of on it. Also be |
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sure to unmount/remove and reinsert it a few times. I have encountered |
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cards that only work 1 out of 4 times they are inserted into the card |
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reader, etc. Maybe the contacts are worn if it's a few years old? |
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Some (all?) memory cards do wear-leveling/load balancing so when you |
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write to sector 13 it might not be the same sector 13 as last time, so |
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doing any kind of repeated error testing might be difficult. In fact, |
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if the card detects bad spots it may simply hide them from you. There |
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may be programmatic ways to bypass the card's wear-leveling, but I |
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don't know how. |
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|
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Good luck! In case you can't get it working reliably, Newegg has an |
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8gb CF card for $19.99 & free shipping :) |
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|
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Paul |
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