Well I'm sorry if my post reply above didn't come close to explaining in such detail.
However, in your first post you ask a question that you couldn't play a video within splitcamera at all, it would just crash without no warning error message as to why!P.S - So I replied and said, its because you didn't have an codec / encoder installed. <-<< (I kept this answer very simple)
Now there is reason I advise users to read carefully the various threads on the forum. So that it would avoid repeating myself. Because some user's or a lot of them, can't be bothered to take the time to study or read what is already their as in some of available threads on this forum.
Splitcam forum, for splitcam related issues only if you will. Click on the link below!viewtopic.php?f=19&t=4195