Play Movie Files Directly Within the Finder of OS X
Do you have a large directory of movies? Not sure what each video file actually is? If you’re in thumbnail view at a large enough resolution (looks like 68×68 is the threshold for me) or you’re viewing the folder in Cover Flow view, you can play movie files directly within the Finder! All you need to do is hover over the movie files icon to display a play button. Simply click play and the video complete with sound will play seamlessly within the Mac OS X Finder window as a tiny thumbnail, or in the larger panel window if open in Column view. Hover over again while it’s playing and there’s a pause button to stop the video playing too.
This is a really neat feature that has been around since 10.6, but there are some potential performance downsides that you may encounter, particularly with directories that are full of many large video files. If you experience any such performance issue, disabling the icon thumbnail generation will also remove this feature.