Traditional Nikon NEF is pretty simple. It's just a tiff. Lossy compression is just gamma-encoding with a LUT (stored in the file). I think most traditional raw

Traditional Nikon NEF is pretty simple. It's just a tiff. Lossy compression is just gamma-encoding with a LUT (stored in the file). I think most traditional raws are principally similar. More complex compression schemes like ticoraw are fairly recent. What's complex is the metadata. All the cameras have different AF, WB and exposure systems.