I have not had success getting CloneBD to successfully backup any of my movies. It reads in the original movie and when it finishes, it just says the blank disc is bad, and asks if I want to try another disc. I get the error when opening an .iso file and also when reading in the original movie with a blank disc in the second blue ray drive. I have submitted multiple log files and have not gotten any further notification. I took one of the exact blue ray blanks that CloneBD says are bad (They are RiDATA brand) and used Windows Explorer to copy 16GB of images from My Pictures folder to the disc. The process completed, and I can access the images on the disc. This proves that the discs are not bad. I hope something can be done to fix the program.