The form of the video directory does not work, because it always take the root of the web page, not the directory where the videos are, and to show a video I have to put the entire address in the code: [video mp4="http://.../videos/xxxxxxx.mp4"], or this another way: [video mp4="wp-content/uploads/videos/xxxxxxx.mp4"]. This happens to me on the internet and on localhost.
Another thing. The player (skin "tube" for example) is shown differently in each browser, and it seems that only looks good in Internet Explorer. I've attached a photo to see it. In Chrome the time bar moves a lot to the right. Also, in Firefox the video is enlarged, while Chrome and Explorer looks good (with black bars on the sides, not altering the appearance).
It would be interesting to put a button to add a video in the form of new entry. So we should not write the code.
It would be interesting too, to add a preview image on each video.
It's all by now. I'm spanish, so sorry if you don't undestand me.