03-06-2014 05:07 PM - edited 03-06-2014 05:18 PM
"Catalog index file created on Canon digital cameras; stored in the CANONMSC folder and corresponds to other folders saved on the memory card; i.e. "382.CTG" contains information about images in the folder "382CANON."
CTG files contain information about the number of images stored in each folder on the memory card (typically up to 99). They should not be manually opened or edited by the user. The camera will automatically delete the CTG files when the corresponding images are erased.
CTG files are much smaller than .JPG files and do not contain any image data. Therefore they cannot be converted to JPEG files."
Here is the source: http://www.fileinfo.com/extension/ctg
You looked for your images in the wrong folder that's why you see strange file.
On Canon image files are located under:
\DCIM \xxxEOS1D \xxxCANON \***YYYY.JPG \CANONMISC (DCIM control metadata) \MISC
03-06-2014 05:09 PM
Files that contain the .ctg file extension are Catalog index files. These files are created by certain Canon digital cameras. When a Canon digital camera takes a photograph, it stores the photo in a folder on the camera's memory card.
The CTG file stores information about the number of pictures that are stored in each folder located on the camera's memory card. These files allow your computer to index the files and populate them to your computer. The CTG file does not contain any actual image data, rather it just contains an index of the data contained in the folder.
You should have another file/folder that is what you'd expect like jpg, png, raw etc. those are the pictures.
05-04-2014 06:22 AM
05-04-2014 11:21 AM
And you cant playback the images on your camera either?
When you say the chip is full do you mean the SD card? Either way it should have stored the images up to when it was to full or to full.
If there is no DCIM file then you lost the images somehow.
Id reset the camera and reformat the SD card in the camera before attempting anymore shots.
05-04-2014 01:48 PM