All, I just purchased an RX100 (first version). I have an old version of Photoshop (CS3), so I'm using .dng converter to convert the proprietary Sony files to .dng. Upgrading Photoshop is not an option; nor is getting the newest LR as I have an old Vista 32 bit system. Anyway, here's the question: when I convert the .ARW to .DNG the file sizes jump from about 20mb (ARW) to anywhere from 45-85mb (DNG). I've never seen anything like that from my Canon RAW files. I couldn't find much online, but I did find something that suggested Sony used codecs that were not compatible with DNG? Anybody else have any experience with this? I'm using the same settings as when I convert my Canon 6D files and they're very close in size to the Canon Raw. Are these large files just something to live with or am I missing something? Thanks.