You can download a free converter from Adobe that takes these proprietary formats and converts them to DNG. It contains the exact same information, so no, there

You can download a free converter from Adobe that takes these proprietary formats and converts them to DNG. It contains the exact same information, so no, there's nothing special in these formats. If you want to do something innovative and don't want to follow Apple's example and contribute to the spec, use the "DNGPrivateData" tag. It's in the spec for this very reason. If you insist on using your own format for some strategic reason, annoying the entire RAW ecosystem, you're acting like a jerk. On the other hand, if you're doing it because you want to express your engineering genius, I agree that isn't acting like a jerk. That's acting like a child.