I have many Quicktime files that I purchased and they are not supposed to have backgrounds. The backgrounds should be blank since they are video elements. However anytime I play them the backgrounds are black. I tried loading them into Quicktime Pro and the backgrounds are still black. I also tried CyberLink Power Director Deluxe. How can I change the background or better still overlay them onto some other video? Even changing the background from black to white would be great. I have access to most popular video software. Sample attached. Thanks for your time.
A brief explanation or video cap movie would be enough.