Thanks Barough, I am willing to learn from you experts, I have learned a lot since I joined this site but I have still to reach the same planet as people like you, zebadee, alan, nextburner etal, but I intend to get there however hard I have to try. I don't have logs of previous failed attempts as I never thought of keeping them. I will make another attempt to copy one of the films on these double film discs and save the log as you suggest. Before I do though, I would like to ensure that I am using the correct software for my project.
I have two films on one S/L disc, obviously they have been greatly compacted. I wish to recode each film separately to a S/L disc and recode it back to as near possible the original quality with one film to a disc.