Hello my friend seems this is possibly one of the most unhelpfull forums on the net. Lots of people seem to have the same or similar problems and lots view the posts,but getting a response seems unlikley. It may be no one has the answer. I suspect if you pay for technical help you may get the same answer "Use ffmpeg first". This seems to be the standard answer , but does not actually help or solve the issue. The next answer would probably tell us its our computer system is at fault!!!!!!!!!! so there you have it is our fault. Good luck lets hope someone out there can actually solve this for us/you. Martin