Thanks guys :-)
About the black borders. It was an oversight on my part. In the final version they will of course be perfectly black the whole time.
If you're using MPC to watch, I recommend right-clicking the screen and going to Filters > FFDShow Video Decoder > Properties - There choose crop and set it to Top:90 Bottom:90. This will crop the boarders for you and you can have an uninterrupted viewing. But be careful to uncheck the crop in the settings after you finish watching, because otherwise it's gonna apply it to all the videos you'll watch.