I have been a Slysoft/Redfox man for a long long time, and have always been 100% lifetime. Today I tried to copy my Apocalypto using CloneBd. I wanted a great copy so I used Verbatim 50gb disc, and unfortunately CloneBd could not recognize it as a 50gb disc. I got disgusted and finally burned Apocalypto blu ray on the same 50gb disc with ImgBurn. I am not complaining. I am just disappointed. I have used CloneBd to burn other blu ray 50gb disc without problem. I hope this isn't something that is going to continue with my other bluray disc.