@chmee: it wasn't directed at you, it was a doubt about all the other closed-source apps from this forum that do (more or less) the same thing as raw2dng.
This is an open source community, we share the knowledge with everyone else, so I think it's fair that everybody who uses our software and expands upon it should share their knowledge instead of hiding it in binary blobs.
I understand you are not using any of my code, so there are no GPL issues. But what about the fundamental aspect of open source, collaboration?
The part about raw2cdng was that a user asked me to fix a bad pixel problem in your program, I told him your program does not appear to be open source, so there's nothing I can do.
Sorry for the misunderstanding.
finally, its a free software
Since we do not have the freedom to see your source code, to study it or to reuse bits from it, your program does not count as
free software, sorry. And the same is true about all the other closed-source programs (freeware != free software).