Video Collector said:
May I just say that I second the request for a version that keeps the rounded corners visible. I believe it is an insignificant price to pay to preserve the maximum image area. The extreme outer edges of the frame are worth preserving too :-)
If I do mask the corners, it would be with a rounded mask so as not to lose any information off the sides, nor off the top/bottom. Don't worry, I certainly won't just chop it down to make square corners! The reason why I might ultimately chose to mask the corners with rounded borders, is that sometimes on the print those out-of-boundary areas can have all kinds of flickering distractions. Individual frames might look fine, but when in motion it can look worse. I'll see what it looks like when I get to that point. Thanks again for the suggestions!