Addendum to my prior post: it looks like the DSC-V3 may be a better place to modify the raw.plist as it has more structure in common with the R1.
TIFF vs. DNG?
I tried the TIFF alternative first, using the Sony converter, but found the file sizes too large for the value added by a more raw-like format. TIFF files were roughly 2x the SR2 in size. DNG's are about .5xSR2 in size.
Some logic:
So what happens between the sensor and the storage? Two things: compression and tweaking--a technical term describing the sharpening, etc. that the camera does. JPEG does both using a copression algorithm that
can reduce the content of a file. Is this a problem? Imagine that you are the very talented engineer/photo expert at Sony with all the details of the sensor design at your disposal. Could you tweak the sensor data and manage the JPEG compression in such a way as to preserve quality, reduce file size and do it fast? My guess is that you could, particularly with Sony's premier camera! That's why JPEG-fine-10mp out of the DSC-R1 is acceptable for almost any photographic purpose consistent with a 10mp digital camera as a source.
Why mess with RAW? Your photo-eye may have seen things differently than the sensor saw it and the in-camera algorithim didn't help.
Historical side-note: when the first pictures came back from Mars they were developed and printed useing the top technology of the time (FotoMat, I think) and guess what? They came back showing brown rocks and a blue sky! Why? Because that's what the "algorithim" was trained to expect. The scientists went back to "raw" and got what the thought Mars should look like based on the chemical composition of the atmosphere and surface constituents.
As I understand it, TIFF has the tweaks, but without any compression so the file size expands accordingly. I don't think that TIFF preserves the underlying raw data in a form that can allow an "undo", so there is no real advantage other than inter-system portability.
So, for my work, JPEG works about 80% of the time and the rest is SR2 to ACR to DNG. Before the raw.plist discovery, I went through PhotoShop and kept the DNG's in a separate folder. Now, I think they can be managed in Aperture. TIFF files are redundant unless I have to send a full-size finished file to someone.
iMac G5 Mac OS X (10.4.5)