Open Standard Media Player (HTML5, jQuery)
mediafront.org
mediafront.org
Also the name, OSM, is very similar to Adobes "open" player framework, OSMF, http://www.opensourcemediaframework.com/. That could get confusing.
Other than that nice idea.
Really, really don't like the interaction design of the thumbnail chooser. It's quite annoying to use. Other than that, neat toy I suppose...
If I've said it once, I've said it a million times: if you roll your own scrollbars, make sure they work like the scrollbars everywhere else on every operating system you plan on supporting. E.g., if a container is scrollable, it should listen to the mousewheel. If you can't get your special custom scrollbars to support the mousewheel, DON'T BUILD THEM.
The auto-scrolling-when-highlighting-the-top-or-bottom-thumbnail is also quite annoying. Think about this:
1. I see the bottom thumbnail, want to click on it
2. Thing moves automatically. Whoa.
3. All of a sudden, the thing I wanted to click on is no longer under my mouse cursor. Now I have to think and move my cursor yet again
4. Rollover actions like this do not work on touch mobile devices (thank god)
Youtube' html5 player, jillion's player, etc. dont work reliably for me. I'm not sure whether that is chiefly due to difference of the encoded video itself.
For this to be useful for websites to embed they need to make the player easily theme able, like jwplayer for flash (I didn't look at the docs, so this may already be in place).
Good luck to them, they have a nice start!