Pekka posted a link about crw conversion routines for software authors in a previous post.
I compiled it for windows...
http://knm.homeip.net/crw.zip![]()
It converts from CRW to 48-bit PNG just by drag-and-drop.
The downside is this. You have a lot of work to do to accurately set black/whitepoints and gamma. And, not many programs actually work with 48-bit files.

