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FORUMS General Gear Talk Data Storage, Memory Cards & Backup 
Thread started 31 Aug 2018 (Friday) 20:42
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Finally had a Memory Card Failure -- SanDisk Extreme 128gb....

 
eelnoraa
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Sep 14, 2018 02:36 as a reply to  @ post 18699145 |  #16

If it is CF, you may want to contact Sandisk too. I know for a period of time, a few years back, Sandisk CF has FW issue where during some usage condition, some last written files will be lost. But that happened in a very short period of time. Sandisk held production and recalled all cards in retailler. You may want to check with them. They will replace your card if yours belongs to those serial number

Card reader can definitely be another reason tho


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AZGeorge
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Oct 18, 2018 18:36 |  #17

Jotto123 wrote in post #18699720 (external link)
I've had files disappear from a card once.

I believe it was from a card I reused. Since then I only use a card once.

You are, of course, joking. For others who may be reading:

With any quality card the risk of failure on first use is much higher than for the next hundred or thousand or so uses. Mean time to failure stats do not even include initial use because that reveals some many defects.

That said, I'm one of those who makes a habit of reformatting cards in the camera every tenth use of so. That is likely a foolish level of caution but does produce a "new" card.


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eelnoraa
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Oct 18, 2018 19:07 |  #18

AZGeorge wrote in post #18731745 (external link)
You are, of course, joking. For others who may be reading:

With any quality card the risk of failure on first use is much higher than for the next hundred or thousand or so uses. Mean time to failure stats do not even include initial use because that reveals some many defects.

That said, I'm one of those who makes a habit of reformatting cards in the camera every tenth use of so. That is likely a foolish level of caution but does produce a "new" card.

The first part is a true statement.

The 2nd part, where you reformatting the card, it actually does NOT do much except marking all data invalid. Contrary to what is believed, it does NOT write and erase the whole card. Even low level format in SD card actually does NOT erase the whole card. The only command to erase the whole card is "secured erase", which I don't believe exist in CF, SD interface. CFast has a chance because it is SATA interface command.


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Oct 31, 2018 17:52 |  #19

I reformat in the camera after each use.
I've never had a card problem after thousands of cycles on many cards. But I'm not naive enough to think that it can't happen. I've got a good recovery program and I've used it to help several friends recover files.
Most everyone I've talked to who has experienced a card problem was deleting files on the card while viewing them from a computer, both Macs and Windows machines.
Best way to delete is reformat in camera, in my experience. One guy's experience. Yours may be different.


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Nov 22, 2018 12:10 as a reply to  @ f8andBeThere's post |  #20

After shooting I pull card from camera, transfer pics to laptop, put card back in camera and the reformat to delete pics. Been using the same card now for 6 years with no issues.


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MajesticMomentsPhoto
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Nov 28, 2018 20:53 |  #21

ok, here is a first for me as well.

This afternoon I'm shooting a family's Christmas photos at their house. During the shoot in which I formatted card prior to start in camera they wanted to see a certain file to see if I captured what they wanted bigger than on LCD. 132 files the card/camera shows. I shut off camera pull card pop it into my card reader hooked up to the Laptop, and ... nothing the folder or the files don't exist on the card. WTH???? I pull the card out reinsert, nothing? I pull card out and place it back in camera, NOTHING! 132 files don't exist!!! Lexar 1066x 64GB card is completely empty!!

Got home running image rescue as I type this???

never seen this issue before...


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John ­ from ­ PA
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Nov 29, 2018 03:06 |  #22

MajesticMomentsPhoto wrote in post #18760636 (external link)
Lexar 1066x 64GB card is completely empty!!

You might want to review the article at https://hetmanrecovery​.com …-memory-card-recovery.htm (external link), specifically the part about 1/2 way down about the different methods of recovery that should be used when you go above a 32 GB card, which you apparently have done.




  
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Post edited 3 months ago by MajesticMomentsPhoto.
     
Nov 29, 2018 04:54 |  #23

John from PA wrote in post #18760763 (external link)
You might want to review the article at https://hetmanrecovery​.com …-memory-card-recovery.htm (external link), specifically the part about 1/2 way down about the different methods of recovery that should be used when you go above a 32 GB card, which you apparently have done.


My card is a CF card, purchased from B&H.


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John ­ from ­ PA
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Nov 29, 2018 08:25 |  #24

MajesticMomentsPhoto wrote in post #18760786 (external link)
My card is a CF card, purchased from B&H.

Read the article at the link. The consideration is a computer issue and occurs when you cross the 32 GB threshold, regardless of whether it is a CF or SD card.




  
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Nov 29, 2018 10:18 |  #25

John from PA wrote in post #18760851 (external link)
Read the article at the link. The consideration is a computer issue and occurs when you cross the 32 GB threshold, regardless of whether it is a CF or SD card.

Interesting article.

I tried using big cards with my Android device (reading and transferring files) and it was a big headache. The reason was because of the proprietary nature of exFAT. That's a different issue than data loss but does point to the problems of that format.


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MajesticMomentsPhoto
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Post edited 3 months ago by MajesticMomentsPhoto.
     
Nov 29, 2018 20:18 |  #26

John from PA wrote in post #18760851 (external link)
Read the article at the link. The consideration is a computer issue and occurs when you cross the 32 GB threshold, regardless of whether it is a CF or SD card.


I did, it doesn't mention CF cards once. it is all about SD and it's variations..


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MajesticMomentsPhoto
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Nov 29, 2018 20:53 |  #27

update: I tried Image rescue, nothing found. the card cannot be formatted, and it will not allow anything to be written to it...


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John ­ from ­ PA
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Post edited 3 months ago by John from PA. (2 edits in all)
     
Nov 30, 2018 04:57 |  #28

MajesticMomentsPhoto wrote in post #18761316 (external link)
update: I tried Image rescue, nothing found. the card cannot be formatted, and it will not allow anything to be written to it...

The Lexar 1066x 64GB card is UDMA7 as I recall. When these first came out there were lots of issues and the final resolution was that the card reader had to be UDMA7 compatible. Lexar themselves, with their very high end reader, had to issue a firmware update to allow the reader to work reliably. You can read about the potential reader issue and incompatibility with UDMA7 at https://www.photo.net …xar-cards-failure.502098/ (external link). Should you be using the Lexar reader, the firmware updates are at http://www.lexar.com/s​upport/downloads/ (external link). The update that corrected the UDMA7 issue with the 3.0 dual slot reader is dated July 2012.

Check the camera firmware as well; for instance, with a 5DII firmware 2.1.2 incorporates a change that "Optimizes the camera’s performance when using certain UDMA 7-compatible CF cards released in February 2012 or later."

Checking around, some people report success in getting images off the card by leaving the card in the reader, then restarting their PC. If that works, don't touch the reader, use the opportunity to get the images off the card.

Also, before going much further, get yourself a bright flashlight and look into the card socket on the reader (or readers) and the camera. It has been awhile since much discussion of a bent pin in the socket but they have been know to happen and damage a card.




  
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Nov 30, 2018 13:29 |  #29

I have had a 128gb card fail a few years ago, luckily it was just messing around stuff and wasnt a big deal. I now limit myself to 16-32gb cards so if one fails, I dont loose everything, or if it is something super important dual card it and set it to mirror. Having 1 card is nice and all but it is 1 point of failure, if you are shooting a wedding having some images is better than non.


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docholliday_sc001
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Nov 30, 2018 14:14 |  #30

The Fox wrote in post #18761673 (external link)
I have had a 128gb card fail a few years ago, luckily it was just messing around stuff and wasnt a big deal. I now limit myself to 16-32gb cards so if one fails, I dont loose everything, or if it is something super important dual card it and set it to mirror. Having 1 card is nice and all but it is 1 point of failure, if you are shooting a wedding having some images is better than non.

I shoot 128-256GB cards, but for important jobs, I'll shoot in dual card mode, with cards from two different manufacturers. The probability of both cards failing at that point is mitigated. Small cards suck as they usually will run out of space right when you need it!




  
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Finally had a Memory Card Failure -- SanDisk Extreme 128gb....
FORUMS General Gear Talk Data Storage, Memory Cards & Backup 
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