I've got to "merge" a bunch of PNG (image) files with WMV (video) files. In every case, a single PNG file, 600 x 450 pixels, will be the "background" and a WMV (video), 280 x 210 pixels, will be an "inset" video ... basically, the image has text/notes and will have the video as an "inset", not always at the same location, but mostly at the lower righthand side of the image. The finished file needs to be a single WMV (video) file.
I've found several programs which "convert", or "merge", but not really sure if they will do what I want. Does anyone have some experience with this and can point me in the right direction? Many thanks in advance.