@megaexer, I think the problem with your movie is that it has hardcoded horizontal bars. Either SiB or mplayer would have to detect that to be able to zoom correctly.

The way the zoom in SiB works is that it starts mplayer in silent mode to retrieve the video resolution from its console output and based on the resolution it will determine the zoom/crop parameter it will then start mplayer with in regular mode.

@jakiman, I haven't used kmplayer for a while, I need to check how that works later. Probably it runs mplayer in slave mode, whereas SiB only forwards key events.

And about the background... I like it as it is now