7D corrupted files.. beware
 

5 of my clips from yesterday's wedding were corrupted. they have all the seemingly right file size on them but there is no thumbnail on the finder and can't be played or anything...

These files are from 7D.. and I've read some other problems with 7D corrupted files.. not with 5D though.. maybe its time to just go all 5D...

what kind of memory card are you using

Not the 7D issue. I recently saw 5D MKII losing photos exactly the same way. File is there but no thumbnail and no way to open it. If you also open the file with a hex editor, you'll see that it contains only zeros. Nothing is there. This happens because of bad media OR because of malfunctioning card readers! If you read the files directly from your card and they don't work, then it's game over. If this happened after you tranferred them to the computer, then try checking them again on the card. If you erased the card but you didn't write anything new on them, then use a recovery software and there is a good chance that you'll find the corrupted files in working condition.

If the files are there and you can't open it, this company can save it ,they did it for me, you will need a mac
Treasured • Download

i use sandisk extreme 32gb 60mb speed

the files on the card are not readable. its very very annoying that both cameras are not reliable....

I have tried the treasure app and the preview repair file was playing on my comp as a bunch of greens, blues pixels...

I have had that on an xsi recently. I believe it is the result of a low quality memory card.

One thing to be aware of is that there are a LOT of fake memory cards out there - eBy is notorious for them, so depending on the source of your card, that MAY be the source of your problems. IIRC Sandisk has a really good warranty, send the card in and see if they say it's a legit card with issues, or a fake. If you've had data loss, you don't want to reuse the card, as you risk more losses.

I've seen lots of problems with sketchy cards causing "camera errors"... you can't blame the camera - they need quality cards with good specs and headroom to function properly. Don't put regular in your high performance car...

I use the same cards. No issues so far, but this concerns me A LOT.

all my memory cards came in with sandisk boxes with the rescue pro free software.

I bought one or two from ebay and am not sure which one is which anymore. But I do make sure that I chose the seller with high ratings and says its genuine in box and not ridiculously cheap.

I'm pretty sure my cards are not fake... but yeah... I've used rescuepro to wipe out the data of that card now.. instead of formatting it straight from the card. maybe that will fix it up.

the thing is, there are a number of people on forums that reported the similar problems and all of them come from 7D camera. that got me suspicious...

I've heard corrupted files from 5D too, I got corrupted files on T2i so 7D is not the cause, it is the card, according to Hoodman Raw, Sandisk still have a 3% failed rate so yes you could have a bad card.

I see... well in that case, this card should go to ebay soon.. but I feel bad selling it to someone knowing that it will stuff them up sooner or later... sigh...

Send it to Sandisk - double check your warranty, but it's probably covered if it's genuine. I've bought "sandisk" (small "s" deliberate) on eBay that looks legit, but turned out to be fake. Came in a pretty box and all, but was knockoff. BUT I've also bought genuine Sandisk product on eBay too, with careful selsction of seller... just have to know your source.

Are you formatting your cards in your camera or in the computer?

I have heard of instances where cards can become corrupt when they are formatted via a card reader.

Use it. It worked for me.

I'm pretty sure mine are genuine after reading this article

eBay Australia Guides - FAKE SanDisk Extreme Compact Flash Cards Exposed

I bought like 5 from 1800memory seller

Okay this is crazy. Like Santo, I've had like 6 corrupted files from yesterday's wedding! On 7D and bought the CF from the same eBay seller! :( :(

Luckily, we shot with multiple cams so I'm safe.. but its really making me concerned now if this happens again in crucial moment in the future.. This CF will probably go on eBay too...

That Treasured program is a bit expensive for me.. Is there any other way?

1800memory is actually one of the recommended ebay seller for genuine sandisk cf cards..

I also got another 3 corrupted files on the same card on the next shoot I had last time so I just assume it was a bad card and just not using it... $220 down the drain... will just use it for family videos... I think I will start to buy kingston cards from now on....

I actually want to try the bad card on a 5D and see if it produces the same result... not on wedding of course... for home video stuff...

Wow.. if its becoming that regular, then I won't definitely use this card again for wedding! My Kingston has been proven to be reliable so far.. never had issue with it.

If I were Mr. Sandisc, I would be looking for some 'funny stuff' here. Sandisc is at the top with respect to quality. I smell a rat. Maybe someone has been doing some CF card printing. As long as you print them, you might as well use the top name.

Treasured file repair worked for me
 

Hi Santo,

I have experienced these issue on 2 weddings now and have used Treasured with great success - cost about $150 - worth it for me as footage was very important.

I will be sending my cards back to Sandisk for a warranty claim.

I now wonder if we should be buying the pro version of Sandisk CF instead?
SanDisk | Products | DSLR | SanDisk® Extreme® Pro? CompactFlash® Card

hi marcus, i have tried treasured with no luck. i have also sent the card to two professional card recovery companies in sydney with no luck. they say it might have been the camera failure, which I believe is right. i have since then switched to using all 5Ds.

I have yet another corrupted files last week but I haven't really tried Treasured to see if it helped. I might give it a shot..

But if Santo's solution is correct... it might be a good excuse to upgrade to 5D... hehehe :P

Hey Santo,

so what are you using now - sandisk or kingston?
Have you had anymore issues?

Im very sure that 7d was the problem. and only with 32gb cards sandisk. 16gb were fine.

Marcus: I found a link on the net that has saved my ass... using treasured.. o my gosh... I can't be happier...

for those of you who have similar problem with me... this is what you are looking for:

Not a complete failure Blog Archive Your best ally for corrupt card recovery: Disk Utility

I have tried to professional and established companies in sydney to recover it, no result.. they gave up... but this one works for LESS MONEY!

cant recommend them enough... great customer support too...

It looks amazing! Too bad it's only for Mac computers... :(

I highly doubt it's 7D. It may not be fake cards but it could be one of those cards that was created not with 100% precision.

A new firmware recently came out for 7D as well if I am not mistaken. I haven't updated it but did you? Could be that too...and it's relationship with the card