the "restore down" button should help you with that, but you will be forfeiting some work space. You'll need to resize the window and put the DVD player in the empty space.
personally when I do that I hook up another monitor to my laptop's VGA port and extend my desktop onto it, then I can just drag the player onto the second screen. (MACs do this too, but...)
anyway, it's this one:
There are other solutions, but I'll not get into it now without a little quid-pro-quo in the form of some design help.