I have been told that CF cards eventually fail when used frequently in my Nikon D300 and D800 cameras. I would like to dispose of my oldest 16 GB CF SanDisk cards and buy new 32 GB ones to replace them. Unfortunately, I did not write the purchase date on my cards, and I cannot find a production date on them.
How do I determine the age of a SanDisk Extreme 60MB/s UDMA 16 GB CF card?
What you've been told is both true and completely irrelevant. Yes, CF cards will fail eventually. That eventually is almost certainly after decades, not months, of use. I have yet to have a card fail on me and I'm still using some of my 2005 cards.
None of the 60MB/sec cards are old enough to fail any time soon. As I described in another recent thread, I was able to wear our some flash devices by writing a program that roughly simulated daily photographer use. The cards failed in a day - when the process was speeded up by about a factor of 85,000.
If you're going to dispose of those cards, please send them to me
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
So your simulation of use must have been record and erase images or reformat the card repeatedly in a short amount of time. Would wear and tear and environmental conditions also shorten the life of a CF card in unpredicatable ways?
I just heard from SanDisk. The only way to find out the date of manufacture of the CF cards is to provide them with the batch number that is on the edge of the card. They will then provide you with a date.
Hi, I have had my D300 since 2007 and I have not had a CF card failure. I would not dispose of a CF card because it might fail. However, my smaller cards (mostly older cards) are used as backups. I use Lexar and SanDisk cards and I have had no problems.
>I have been told that CF cards eventually fail when used >frequently in my Nikon D300 and D800 cameras. I would like to >dispose of my oldest 16 GB CF SanDisk cards and buy new 32 GB >ones to replace them. Unfortunately, I did not write the >purchase date on my cards, and I cannot find a production date >on them. > >How do I determine the age of a SanDisk Extreme 60MB/s UDMA 16 >GB CF card?
I know pro users who put 10k images a month on cards. They are putting more wear and tear on those cards in a month than most heavy amateur shooters do in a year. And many of them haven't upgraded cards in YEARS.
Your fears are unfounded. But if you are scared, send me your disposables. I'll gladly take them. I need a few dozen more cards.
Actually the "bits" do eventually wear out. They can only survive finite set of write cycles. BUT as Brian has pointed out that will only happen after a very, very very long time. The only failure I've ever had was an initial failure - that is a CF card with a significant group of bad bits that were DOA. Took one shoot to find them as they were about 1.5GB into the card on initial use. No problem getting replacement card.