Many thanks Vince, I will give your suggestions a try. I do a lot of photography and the idea is to create audio visuals without having to crop images to a different size. The required size (in photographic circles) is 1024 by 760 but resizing, rather than recropping, results in an image size of 1024 by 683 to 686. I’ve therefore settled on a height of 686 and that gives me a width of between 1024 and 1026, hence the use of 1026 x 686.
The intention is to create executable files that will be played on a pc and projected onto a screen.
Many thanks, again.
Rob.