It's supposedly an option with the version of the DNG converter released at the same time as Version 2.4 of Adobe Camera Raw (the one with DS support). It wasn't in the beta test - just in the release.
Shel Belinkoff mused: > > How do you do that? > > Shel > > > > [Original Message] > > From: Godfrey DiGiorgi > > > .... you cannot convert a > > DNG to a PEF (unless you've embedded the PEF > > into the DNG, which loses the file-size savings). > >

