Remove Black Borders with Aspect Ratio
Login to YouTube video manager and add the following tags:
Tag: yt:crop=16:9 (zooms in on the 16:9 area, removes windowboxing) Tag: yt:stretch=16:9 (fixes anamorphic content by scaling to 16:9) Tag: yt:stretch=4:3 (fixes 720x480 content that is the wrong aspect ratio by scaling to 4:3) Tag: yt:quality=high (default to a high quality stream, depending on availability)
Video Manager Screenshot:
Result: Notice how black borders are removed and video aspect is altered.