Insert video in Impress slide (1:1 fit)

Question: How do I insert a video into impress so that it fits the slide 1:1 without any adjustments.

Explanation: I have a presentation for a 1920x1200 beamer. I have set the slide to be 16:10. I have created some videos for some of the slides. The videos are created to fit into the presentation and the beamer perfectly (16:10, 1920x1200).
However, when I insert the video it’s size does not fit the slide and it’s position is not centered. It’s a hassle to make it fit the slides before and after. Is there anything I’m doing wrong or a setting I can turn on/off?