Not in jpeg format

[Vvienne]

Hi

I have a new Canon A75 and have come across a problem. I took a picture, viewed it on the camera and viewed it on the computer. When I tried to view it again on the camera, I received a message that it was not in jpeg format.

Can anyone tell me why this would be and what I can do to correct it?

Thanks very much!

Vivienne

[stopbath]

After downloading the image, did you modify it at all before trying to upload it?

You should be able to upload any unchanged downloaded images.

You didn't mention that you actually tried uploading the image. Did you only download the image, and the original image (still on the camera) was then "not in JPEG format"?? That should not happen and perhaps the process of downloading the image corrupted the file?

[Vvienne]

Hi stopbath

After downloading the image, did you modify it at all before trying to upload it?


I didn't do anything but *view* it on my computer. I did not save it either.

You should be able to upload any unchanged downloaded images.

I'm not sure what you mean by 'upload'. I just viewed it.

Did you only download the image, and the original image (still on the camera) was then "not in JPEG format"??

Yes.

That should not happen and perhaps the process of downloading the image corrupted the file?

Do you think that if this happens again that the camera is defective? I just bought it on Sunday and I have 12 more days to return it for a refund or exchange.

Thanks!!

Vivienne

[stopbath]

Did you use Canons software to send the image to the PC, or did you use a card reader to allow you to use the card as a drive?

I can't see how looking at a photo can do anything wrong, but if the file got saved back to the card somehow, then the new version of file may very well not include something the camera wants (and thus give you the warning.)

It may be that the camera is defective, the card is defective, or that the manner that you viewed the file, replaced the original file with a slightly changed version...


Upload means a file is being sent to somewhere, download is a file is recieved from somewhere. Download is often used as both terms.

You should experiment: Use various methods to explore the images from the PC. See if you can locate the way the images are rendered no good. (program names, menu selections...)

[Vvienne]

Hi stopbath

Did you use Canons software to send the image to the PC, or did you use a card reader to allow you to use the card as a drive?

I used a card reader - built in Mitsumi.

I can't see how looking at a photo can do anything wrong, but if the file got saved back to the card somehow, then the new version of file may very well not include something the camera wants (and thus give you the warning.)

I,too, can't see how this could happen.

It may be that the camera is defective, the card is defective, or that the manner that you viewed the file, replaced the original file with a slightly changed version....

Would you agree that the best thing to do is use it often in the next few days and if it happens again, return the camera? That would take care of the card or the camera being bad as I am using the card that came with the camera.

Thanks for your comments!!!!!!

Vivienne


Upload means a file is being sent to somewhere, download is a file is recieved from somewhere. Download is often used as both terms.[/quote]

[stopbath]

It might be the card reader too... Since the camera was not involved with the viewing on the pc... The camera may infact damaged the file, but I am leaning that it was the card reader or the program used to access the file while the card was in the reader...

If the card never left the camera, and suddenly the photo got corrupted, then yes the camera or card is bad.


Here is a possabilty to check:
Take a test photo. Load the card into the card reader. Use a program to look at the file. Save the file instead of just closing it (can this be done using whatever program you used to look at the image?) Reload the card into camera and view. If the file is suddenly not readable, that's your cause. The file got saved and the jpeg file is missing something that the camera is looking for.

[Vvienne]

Hi stopbath

I have tried your suggestions and everything now seems fine - so far no corrupt files. So maybe it was just some 'freak' thing that won't happen again.

Here is something you said that I don't understand. :-(

Save the file instead of just closing it. <snip> The file got saved and the jpeg file is missing something that the camera is looking for.

The file gets saved to the computer, right? Not to the card? So the card should not have been altered in any way. Am I right about this?

Thanks very much for taking the time to help me try to figure things out.
And also thanks for the upload/download explanation! :-)

Vivienne

[stopbath]

You're welcome.

Regarding the saved files... (Some programs may not operate like this, but generally...) if you SAVE a file, the original file is REPLACED with a new copy. So if you open a file on the card, and SAVE it, the file on the card could be replaced (as long as the program has the rights to save...)

Now if you select the option SAVE AS, a chance to save the file someplace else or rename the file is given (you can still replace the file just by selecting the file again...)

Just selecting SAVE will not likely create a new copy on the PC. You must use SAVE AS... option.

[Vvienne]

Hi stopbath

You're welcome.

:-)


Just selecting SAVE will not likely create a new copy on the PC. You must use SAVE AS... option.

Hmmmmmmmmm... Maybe that is what happened!!!

Thanks again!

Vivienne

[stopbath]

Try it and see... Format the card. Take a few different shots of different subjects.

Put the card in the reader. Open all the images, but SAVE only one of them (remembering or writing down which one) close all the rest.

Then put the card in the camera. If the camera does not display the image saved, but all the others remain ok, then you can rest assured that that is what happened.

Good luck, and enjoy your new camera. :)

[Vvienne]

Hi stopbath

Try it and see... Format the card. Take a few different shots of different subjects.

I am too new at this and am worried about formatting and screwing things up. I shall try it tonight *without* formatting and see what happens. When I get a little braver, I will format.

Good luck, and enjoy your new camera. :)

:-) Thank you and thanks *so* very much for helping. It is very appreciated!!

Vivienne

[stopbath]

Take your time....

Cameras are very patient...



If you format the card in the camera (via the camera's menu) there is extremely little chance of screwing things up. It's very safe.

Formatting via the card reader may be risky, as the camera may take exception to the directory structure created by the card reader... In that case, a format by the camera would likely fix the problem (if one existed.)

Good luck and get trigger happy...

[Vvienne]

Hi stopbath

Take your time....

Cameras are very patient...

If you format the card in the camera (via the camera's menu) there is extremely little chance of screwing things up. It's very safe.

Thanks for that!

Good luck and get trigger happy...

:-) And many thanks again!!!

Vivienne