I've been converting RAW files to Adobe DNG for a while now, but I am having some issues with excessive file size of the converted DNG. My Olympus and Panasonic RAW files generally are around 12Mb, and usually the converted DNGs come out around the same size. I can't quite determine when or how the change occurred but I seem to now be consistently ending up with files over 40Mb. One converted GH1 file I just found was 52Mb! I'm choosing to not embed the original RAW so that should not be an influence, and for that matter I don't recall having changed any of the program settings in Adobe DNG Convertor (v6.4). The larger DNG files still open up inside Photoshop with Camera RAW with no problems, so heaven knows what the extra 30-odd Mb of data is doing.