COMMUNICATION ERROR: Trying to download my 3,500 pictures from my

Try NOT connecting your camera to your computer.


The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.


Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program such as Picasa.

please use a memory card reader adn then recover the photos from that.

then use a format option to format the card

The problem I believe is the sequence or flow of the connection.
With the camera turned off. Connect the USB cable to a computer USB port and the other end to the camera digital port turn the camera on by using the "Playback" button here is a diagram

Place diagram here


You know there is an easier and better way of transferring picture files and that's by using a memory card reader. A memory card reader plugs into the USB port of a computer and the camera memory card is inserted into the reader slot. The computer then looks at this as an external Hard Drive. Both methods will need you to format the memory card after the images have been downloaded to the computer. Formatting the memory card in the camera in which it is to be used will clean the card and making it compatible with the camera both the camera and memory card can then communicate without errors.

http://www.usa.canon.com/cusa/support/consumer/digital_cameras/powershot_sd_series/powershot_sd780_is#ServiceAndSupport

Troubleshooting the camera displaying Communication Error when connected to the computer via USB. If the camera displays "Communication Error," when trying to download images the main cause for this error is that there are more than 1000 images stored on the memory card. It is recommended if there are more than 1000 images on the memory card, that you use a card reader to acquire the images, or to delete images off of the memory so that there are less than 1000 images to download from the memory card.
If this is not the case, there are not 1000 or more images on the memory card, try reconnecting the camera to abnother port on the computer, try another cable or another computer. This error can also display when connecting to a direct print printer. Please check with the printer manufacturer for more information on this error.

Try NOT connecting your camera to your computer.

The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program.

if it supports the card and stores picture on it ..that the actual bus is not supporting the card ,,and you need a card reader for to use it ..I suggest a usb card reader very cheap and easy to use..
remember only if the camera accepts the card and works fine with it..cause there is a posibility that the camera is not compatible with this kinda large memory cards..
In this case the easy way is a card reader on usb for to not be invasive with he computer
http://cgi.ebay.com/USB-2-0-High-Speed-Multi-One-Memory-Card-Reader-/370308525000?cmd=ViewItem&pt=PCC_Drives_Storage_Internal&hash=item56381babc8

Try NOT connecting your camera to your computer.


The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.


Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program such as Picasa.

Try NOT connecting your camera to your computer.


The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.


Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program such as Picasa.

I had the same problem. My problem was that there were more than 1,000 images stored on the memory card. Once I deleted some of the images from the camera memory card, I was able to download pictures again.

If your SD memory card contains more than 1,000 images, the camera will display "Communication Error". Use a card reader (if available) to import your images into the computer, or see about having some CD's made at a photofinishing business.