2004.09.27 13:38 "[Tiff] New Adobe DNG (Digital NeGative) TIFF Specification", by Frank Warmerdam

2004.09.28 23:01 "Re: [Tiff] New Adobe DNG (Digital NeGative) TIFF Specification", by Chris Cox

or is DNG a case of Adobe trying to make sense out of chaos and independently producing a specification it hopes camera vendors will follow?

Pretty close.

But we closely followed the existing RAW variants so that changes from (.NEF, .RAF, .CRW, .CR2, etc.) to DNG won't be that difficult.

Chris