Hi, this is probably a repeat question, but here it goes. I have been copying some files from Your tube and then converting them for me to play on my Ipad 3 and mini. I selected Itune Optimum Quality, I tried IPAD settings and I get the file to convert and transfer into Itunes in the movie section. Itunes does not recognize it but it shows there if I open it all I see is the time bar moving and a black screen no sound or video. What am I doing wrong.

Thank you for the help.