Rod wrote:
Is a GBR, or GIH really considered an image by lawful standards? It doesn't have an image extension so that could get cloudy.
Well, an "extension" is basically just a made up thing, a remnant from ms-dos, which doesn't hold any actual meaning in modern computing - it's just a handy way to categorize files and let people quickly know what type of file they're dealing with. Basically, the extension is just whatever is appended to the name of the file, you can easily take for example a .png and name it .jpg and it'd still be a .png inside.
So an "extension" really has nothing to do with whether a file is an image or not. If a file holds graphical information, then it's an image.
But even so, I don't think the law, or any CC license, is really concerned with whether the work it's applied to is an image or not. I could be wrong, but I think a CC license can be applied to whatever work, whether it's graphical, or text, or sound or whatever, and therefore, it applies just the same, no matter what kind of media it's used on. So if I write a story about a pumpkin, and license it under a CC-BY-ND license, you would not be allowed to take the story and change the pumpkin into a squash or a watermelon.