You're right, John. Files from the original 12mp micro four-thirds sensors and even the GH2 tend to be a bit on the "brittle" side. The latest sensors from Sony (and whatever Panasonic may unveil next) might be different. That's why I tend to shoot jpgs only with my micro four-thirds equipment. But I think you've helped me make up my mind about the K-01. Thanks; I'll let you know.