So for the past while now I've been getting these every 100 or so photos. I get them using my 20D and XTi across multiple brand CF cards and while using multiple different card readers to bring it onto my computer. I cannot pinpoint the source so I'm hoping someone on here has seen this before. The only thing I can think of is my computer? Although I've dropped it onto multiple different hard drives as well....
The kicker is If I go back into the CF card and recopy those images individually its fine... Its just a PITA because I have to dump and then search through all of them to make sure they aren't corrupted before I reuse the card.
When I shoot RAW+jpeg the jpeg copy is always fine.....
I have seen those from time to time, always while shooting sports and chimping / deleting a lot .. never in a wedding situation when I never delete and don't chimp as much.
You really have to watch it with this type of corruption as some programs (DPP) will stop their download at the corrupted file, leaving good files behind them not downloaded.
Just tagging this one as I have experienced this myself a few times, not when copying the files, but when going back to view them months later. I assumed I had a disk going bad and went to the back-ups again. In fact I'm in the middle of doing a chkdsk /r on the drive now and there are many errors.
If someone has an explanation (and solution) I'd be very interested to hear it.
I've experienced the same issue with a Maxton EXT HD corrupting files and with a no name card corrupting files at the same storage/level/space. Here's my kicker, only with RAW and video files?.?.? Must be a size/format thing?
I stick to one brand of HD, one for cards, one for discs (whatever I considered the best and with a good dash of reviews and feedback. WD, SanDisc and Verbatim is my choice but whatever...)
You know i get these time to time with cheap brand CF cards. But i never get them with Sandisk or Lexar cards. Test your cards to see if you have any bad sectors. Also try transfering them via USB connection from your camera.
I try never to fill a card more than 80% full. I also use the fastest cards I can get, because RAW files are so large and take so long to write. I don't want to be pressing the shutter release while the previous shot is still being written.
Once I have copied my pictures to my computer, I usually re-format the card IN THE CAMERA, so I'm always starting a shoot with a clean slate. If for some reason I'm going to delete only a few pictures, rather than the whole card, I still do it in the camera, not in a card reader attached to my computer. That way, all writing is done by the same device.
So far, I've never had a corrupted image.
In this case, though, where the files appear to be okay on the card, but corrupted when downloaded as a batch, the problem probably lies in the computer. Reinstalling the software may be indicated.
I used to get this all of the time....Even called Apple and they couldn't figure it out. Shortly after this was happening my computer bombed....Bought a new one and it hasn't happened since. My guess is it is a computer issue. Sorry this is happening to you but am glad to know that I wasn't losing my mind.......
I found the best way to avoid this is plugging the cam via usb directly into the computer - I had a thread a long while ago about it, and found the RAW from a CF card reader to machine would look like the above image, but linking the cam with a cord directly to the comp and using the canon software worked fine.
I'd definitely start by trying a different card reader. That's definitely a corrupt file but from your symptoms, it sounds more like a bad reader or cable.
Since they are not corrupt on the card, and you can download them one at a time( some guys didn't read that part) I bet it is a transfer problem between your reader and the computer.
The common thing to do is to try the transfer direct from the camera, if that works using the same data card, the "Reader" if that still not working, ...guess the cable maybe a USB1 Change cables..or the processor in the computer is to slow to hand the big files(didn't say about what computer?) I would question it's the card unless the data was corrupt on the card and that would show on the back screen..
I'm betting it's a computer problem: hard-drive controller, hard-drive, or maybe connection between controller and drive. I've seen images look like this in "old" folders which I had not looked at in months, but which were fine when reviewed and processed several months ago and maybe even printed. The images became "corrupt" over time. I have seen it in jpgs and raws. New drive fixed the problem... not the files that were ruined, but the problem stopped occurring when the drive was replaced. Backups "fixed" the spoiled files.
kim2116 wrote:
I used to get this all of the time....Even called Apple and they couldn't figure it out. Shortly after this was happening my computer bombed....Bought a new one and it hasn't happened since. My guess is it is a computer issue. Sorry this is happening to you but am glad to know that I wasn't losing my mind.......
This happened to me too. It drove me mad and I would even see them corrupt as I was processing them right in front of my eyes. I downloaded the cards onto my husband computer and processed them there without a problem. It wasn't until I replaced my computer for other reasons that the problem stopped (touch wood). It was so frustrating.
bad ram can cause this too, i use to have all of my images in my web browser do that and it was bad ram. People like to put the blame on all sorts of things, but this is a regular cause of bad ram. Especially since he said it happens on import/first try and he can re copy it and its fine. google memtest356 and test your ram.
