What a pity! Is there a method to solve the problem? The answer is yes. You've probably seen the error before: 'Screen grabs are unavailable during DVD playback. Usually when we watch a DVD copy movie for Mac and there are always some moments we want to retain, but we are prevented from taking screenshots while DVD Player is running. How to take screenshots in Mac OS X’s DVD Player application ¶ How to take screenshots in Mac OS X’s DVD Player application.
