Some more progress on RetroCopy's small redesign...this time with video playback.

As you can see DVD covers have been added to the types of boxes displayable. And I also had to bring the video section up to the standard of the other cores, which is why there is now a "System" you can click on to start videos. And also an input device which will allow you to control video playback.
Also as I reported on the forum, 64bit video playback and encoding on Windows platforms is now working. I've also updated to the latest FFMPEG sources which seem to be a bit better also.