The real reason RAW camera formats are all different and confusing
Briefly

The article discusses the ongoing debate between using JPG and RAW file formats when capturing images, particularly with digital cameras. While JPGs are easy to use, RAW offers a wealth of data for post-processing, yet most cameras produce RAW files in proprietary formats, creating compatibility challenges. Adobe's DNG format aims to provide a standardized, open solution that includes metadata within a single file. However, widespread adoption among major camera brands is lacking, leading to continual fragmentation in the RAW file landscape.
When you set up a new camera, or even go to take a picture on some smartphones, you're presented with a key choice: JPG or RAW?
Most cameras capture RAW files in proprietary formats, like Canon's CR3, Nikon's NEF, and Sony's ARW. The result is a world of compatibility issues.
Adobe tried to solve this problem years ago with a universal RAW format, DNG (Digital Negative), which it open-sourced for anyone to use.
DNG is slightly streamlined since it's just one file that allows nondestructive metadata edits within it.
Read at The Verge
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