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FORUMS General Gear Talk Data Storage, Memory Cards & Backup 
Thread started 23 Apr 2016 (Saturday) 23:49
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PC does not rcognize Flash card

 
Narwhal
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Apr 23, 2016 23:49 |  #1

After a couple of years of moderate use my PC-(Windows 10) computer suddenly does not recognize one of my SanDisk 32CF cards. I have used it exclusively only with my Canon 7D.

The card had a few pictures on it that, luckily, are not very important. After the computer rejection of the card, I put it back in the camera and it appears normal with the photos intact. I added a couple of test shots and the tried do read it again with the computer via one of the slots. Rejected again.

I transferred the card back to the camera and formatted the card with the camera. (MY standard practice is to format withe the camera. I never erase.) I then took a couple of test shots with the same result back in the computer.

I then tried the computer quick format with no result. To summarize: Good in Camera / Bad in computer.

I tried to format but it it went on and on with finishing.

Questions: what would cause this problem?
Is full formatting a olution?

Note: I live in Brazil and although CF cards are available they are quite costly. I prefer card purchased direct in the US or Europe when I or one of my friends makes an occasional trip. With the logistics and cost involved I do not casually throw things away if they can be saved.


JIM

  
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tim
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Apr 24, 2016 00:14 |  #2

Try this memory card tester (external link). Do a few full passes with the largest pattern set.


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rrblint
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Apr 24, 2016 00:52 |  #3

Have you checked the pins in the card reader?


Mark

  
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BossBob
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Apr 24, 2016 01:52 as a reply to  @ rrblint's post |  #4

If it is fine in the camera but not in the computers card reader I'd investigate the card reader. You could also try connecting the camera to the PC and down loading your pictures without the reader. Good luck.




  
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Narwhal
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Apr 24, 2016 11:25 as a reply to  @ rrblint's post |  #5

no problem with card reader. it reades other cards.

The probelm is with the card itself.


JIM

  
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Narwhal
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Apr 24, 2016 11:37 |  #6

tim wrote in post #17982788 (external link)
Try this memory card tester (external link). Do a few full passes with the largest pattern set.

I am running this test......will take more than an hour


JIM

  
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John ­ from ­ PA
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Apr 24, 2016 12:57 as a reply to  @ Narwhal's post |  #7

Maybe time to go back to that Argus C3 that you show. It was one of the most reliable 35mm cameras ever made and wasn't too expensive at the time.

:-P




  
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Narwhal
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Apr 24, 2016 13:06 |  #8

Narwhal wrote in post #17983230 (external link)
I am running this test......will take more than an hour

I ran the test and there were no errors. Then I dd a Quick Format with the PC ( Before the test the computer would not perform the Quick Format). Then I transferred the CF card to the 7D and took a test Photo. Then I transferred the card back to the PC.

The PC read the card normally downloaded the picture.

Result: Card repaired and saved.


TKS TIM.


JIM

  
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Narwhal
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Apr 24, 2016 13:17 |  #9

John from PA wrote in post #17983343 (external link)
Maybe time to go back to that Argus C3 that you show. It was one of the most reliable 35mm cameras ever made and wasn't too expensive at the time.

:-P


I had the Argus C3 from the late '50's. Only stopped using it sometime in the '70's as an occasional extra camera when the external gear teeth locked-up h from too much wear and corrosion.


JIM

  
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tim
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Post edited over 4 years ago by tim. (2 edits in all)
     
Apr 24, 2016 14:34 |  #10

Welcome. You should probably run the memory card tester overnight, an hour is very quick. Do a full format in the computer. Good to hear it's looking ok :)

You can use a reshipper to get things to you. Ship It To (external link) is reliable.


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windpig
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Apr 24, 2016 15:04 |  #11

I had this happen a couple of months ago. It turned out the my 8 year old CF card had gone bad. I though it was my moving to Windows10 and the card reader.


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PC does not rcognize Flash card
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