WPF Media Control

I'm an experienced developer but have a problem that I haven't been able to solve and I'm running out of time to solve it. I need a control that I can use in a WPF application that will play videos. I've tried the MediaElement and the MediaPlayer control but neither can reliably do what I need. Very specifically I need a control that I can add to a WPF window that will play video in a seamless loop. I can provide several test videos if desired. It needs to let me be able to overlay other standard WPF controls on top of it as needed. It also needs to use approximately the same % of processor time as the same video playing in media player would use. It also needs to support playback on multiple monitors at one time. It doesn't sound that difficult, but with the built-in controls there is often a flicker when attempting to loop the video, or a small pause at the point of looping. Additionally the built in controls go haywire when moving from the primary screen to a secondary monitor (CPU usage skyrockets and/or the video stops playing all together depending on the type of video). I don't care what language the solution is written in as long as I can use it in an WPF project and it works as described above. When you bid, please briefly repeat the requirements back to me (generic bids will be discarded immediately) and let me know how sure you are that you can address the challenges and how long after acceptance to have a working demo. If you can provide a demo with your bid that demonstrates a small window playing a video on both screens and looping seamlessly I will strongly favor you.