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Old 08-23-2002, 12:24 PM
Crossbones Photog Crossbones Photog is offline
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What is the "CTG" file???

What is the CTG file and can I delete it, or is it needed for something down the road.

Was just trying to clean up some folders before the football season arrives.

YESSSSSSSSSS!!!!!!!!!

Gary [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img]




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Old 08-24-2002, 01:41 AM
ChuckWestfall ChuckWestfall is offline
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Re: What is the "CTG" file???

Gary:

If your driver software requires an intact DCIM folder in order to access images, then you should leave the CANONMSC folder and its .CTG files alone. However, if your software's only requirement is to access individual image files, then the CANONMSC folder and its contents can be deleted.

Best Regards,

Chuck Westfall
Assistant Director/Technical Information Dept.
Camera Division/Canon U.S.A., Inc.

Background Information: .CTG stands for 'catalog.'

.CTG files are an integral part of the DCIM folder structure that's required in order to comply with the DCF (Design Rule for Camera Format) file format that all current Japanese digital cameras use. These files store various forms of data that the camera and sometimes the driver software can use to control the display of thumbnail images. The .CTG files themselves are very small, typically just a few kilobytes.
On the camera side, the CANONMSC folder and the .CTG files it contains hold the information that allows images from more than one subfolder to be displayed on the LCD monitor without requiring the user to change folders manually. On the software side, the .CTG file allows programs like ZoomBrowser EX and ImageBrowser to rename files coming off the CF card from their original names (for example, IMG_0101.JPG) to a new one that adds the folder number as well (for example, 100-0101.JPG).

[ August 23, 2002: Message edited by: Chuck Westfall ]

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