The new video player of Duocore.tv looks nice, so I send tweet to ask @nytonkla what it is. He replied that it’s Flowplayer. He bought the licence to use with Duocore. Flowplayer is opensource and free to use if you don’t mind its logo showing on the player. Fortunately, there’s a Wordpress plugin which let us use Flowplayer as flash-based video player for FLV and MP4.