Hi everyone. This is my first post. I live in Amsterdam, Netherlands. Ive just retired as a pro and, free from client constraints for speed and the need to balance the budget, I am going back to film. I took my Hasselblads out of storage, has some CLA done and I am busy organizing my darkroom. Over the years Ive collected some excellent darkroom equipment, chief of which is a Durst 1200 with the CLS 501 head. Built like a tank in Italy near where I was born. In fact, I was so impressed with Durst that on one of my trips back home I took time off to visit the factory. Great team. My question: I have two Jobo ATL1000 processors that I purchased second hand some years ago and never used. One has the standard cycles (white letters on black background) which I understand. However, the second ATL (S/n 13781) has a modified set of cycles (black letters on a white background) as follows: Cleaning E6 ST E6 +1 E6 3B 3B +1 Process A C41 ST C41 +1 Process B B/W 5 B/W 7 B/W 9 Process C Process D R3 RT RA4 RT My question: what are Process A, B , C and D? How can I find out by running the machine? Any information will be very welcome. Thank you all for your sharing.