I have started to edit videos again, instead of just uploading after recording.
I use WLMM, when i import a video into it, the video doesnt fit the screen, it has gaps at the top, bottom and sides, i recorded it in 16:9 (1400x900) and have changed the setting on WLMM to 16:9. But when i save the video, it has gaps at the top, bottom and sides.
What can i do to fix this?
Here's an example:
[youtube:1o61sc5v]
<div><iframe width="459" height="344" src="https://www.youtube.com/embed/O9yJ7lxGbMk?feature=oembed" frameborder="0" allowfullscreen="true"></iframe></div>[/youtube:1o61sc5v]
I only found so fast a german vid, but i can give you a short summary.
[youtube:26p74987]
<div></div>[/youtube:26p74987]
In this example is a vid in 4:3. On the website that he shown you can see a lot of different resolution sizes Resolution. When you want to upload a vid on YT, than you must put down in Tags "yt :s tretch=16:9" . When the vid is online, the black gaps are away. When that dosn't works, try out the other that are in his Description.