This Mac tip is provided by Mark Greentree and was originally posted on Mark’s blog – Everyday Mac Support. For more of Mark’s tips visit his site, follow him on Twitter, or browse his archive of posts here.
How to: Automatically Play Videos Files In QuickTime Player
You may have noticed when you load a video into QuickTime Player that it doesn’t automatically play.
To make movies automatically play you can use a Terminal command.
In order to do this we will need to use Terminal. To locate Terminal simply navigate to Applications > Utilities. Within the Utilities folder you will locate Terminal.
Simply launch and then enter the following:
defaults write com.apple.QuickTimePlayerX MGPlayMovieOnOpen 1
Press return and then open a video file in QuickTime and you will notice that it will instantly start playing.
To return the settings back to the default settings, simply enter the following then press return:
defaults write com.apple.QuickTimePlayerX MGPlayMovieOnOpen 0