Just to add my penny’s worth 🙂 . When I take my darks, flats, flat darks and biases they go into a dated + info directory. For example if I am taking them for the C14 (no focal reducer) using the SBig ST8 then the directory could be 20170126_DFB_C8. This helpful for when I go back to old observations and I want to start from scratch processing them again. I keep all my raw files, all the individual Flats – Darks – Flat Darks – Bias frames, as well the calibrated ones.