Comment by karamanolev

Oh, no. What I'm saying is that cameras often take the raw signal from the hardware, but then the camera software frequently compresses that signal before writing it to a raw file (.cr2, .arw, .dng, whatever). This compression can be lossy or lossless. It's important not to confuse the raw signal with the RAW file (an actual format, often specific to the camera manufacturer). Just by saying RAW file, assuming it's lossless or uncompressed is false. So it should be specified - uncompressed RAW (lossless almost by definition), lossy compressed, lossless compressed.