Hello, I wish to back-up some of my BD on a BD-R (25GB). I set-up the settings into ClodeBD accordingly and copied the main movie only. I tried out CloneBD with 3 different Blu-Rays and I´m getting smaller back-ups as needed: The Physician => 44,7 GB => CloneBD says 23,25 GB will be made => a back-up of 17,0 GB was made. Sabotage => 40,7 GB => CloneBD says 23,25 GB will be made => a back-up of 18,1 GB was made. The Wolf of Wall Street => 44,6 GB => CloneBD says 23,25 will be made => a back-up of 19,2 GB was made. Why is CloneBD not making the back-up with the 23,25 GB? It is throwing away time, energy and quality that way. Does this have a correlation with the "movie only", I haven´t tried it yet with 1 to 1 back-up. Thank you.