I tried playing a DVD in MC. The DVD plays OK but when I'm using Theatre View and a Windows MCE remote, when I press the "back arrow" key to exit the DVD to the main menu, MC crashes. If I press the "stop" button (the little square) the DVD stops playing and the name of the DVD appears in a list of one item. The "back arrow" works from there (bringing up the main Theatre View menu). If instead I try to play it again, only the audio plays. The navigation keys will not move the selected item to the top menu bar items like they will in other lists.
On another DVD, I was not able to select the "Play movie" selection from the DVD's main menu with the remote. The highlighted choice would momentarily move off the one it was on, but would then instantly move back. I was able to select it with the mouse.
A related question (and possibly the answer to the above?) is the following. Windows has another application that by default tries to play a DVD when inserted. I have to let it start and then kill it before I can play the DVD in MC. How do I change this in Windows? I know this is a Windows question, not MC, but poking around in Windows help has not produced the answer.