With MakeMKV I made 3 mkv's from a dvd, 1 from the main movie and 2 from the extra's.
When I check the properties with MediaInfo I see that all three are MPEG Video and have the same dimensions, 720x 576.
However when I play them (with Red October HQ), only the main movie is full screen and the 2 others only fill a part of the screen.
Why is that and how can I make the other 2 play full screen as well ?