![]() If you manage to do that you're practically done, just write a small script to automate the search/extract process. It's also quite possible that the individual image file names are in plain text somewhere, which could give information about the file types used, their position in the. If not you'll have to search for repetitive patterns indicating image start & end (yikes!) If it contains size (and perhaps compression) information, great, you'll just have to extract header + what it says is image data (try to) locate an image header in the big file So you could try a brute-force reverse-engineering approach with a good HEX editor: My hunch is that the initial JPEG you get is just a thumbnail of the real content, presumably a TIFF or similar file wrapped in Canon's.
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