Videomaker – Learn video production and editing, camera reviews › Forums › Specialty Topics › Special Effects › Add additional video. › As Bruce points out, this
As Bruce points out, this possible but all depends on the software you're using. A lot of the basic video editing programs can struggle with this, but if you're using any of the professional editing programs such as Final Cut Pro, Premiere, Avid, Vegas etc, they'll easily be able to accomblish this. You'll just need to change their size so that both can fit into the same frame.