Hi, This is probably caused by the fact that the mediaplayer is using hardware acceleration to show the video (this is known as a video-overlay). What that means, is that the mediaplayer is not actually showing the video but just a rectangle with a specific colour, and the videocard will then replace any pixel that has that colour with the video. I believe the video-overlay colour is usually rgb(16,0,16) but it could vary. Make a form with its backcolor set to 16;0;16 and move it over your mediaplayer: you should see the video playing on your form then.