2 Replies Latest reply: May 23, 2010 1:15 AM by siamless
siamless Level 1 (0 points)
How do I prevent iTunes from opening when double-clicking mp4-files?
I only found a way (open with - other...) to prevent certain files from opening. I rather want QuickTime to open when double clicking on mp4 files.

MacPro 2.8, Mac OS X (10.6.1), iTunes 9
  • Chris CA Level 9 (78,695 points)
    Open a Finder window with an MP4 file.
    Right click - open with.
    Select Other...
    In the window, tick *Always Open With* and select QuickTime Player.
  • siamless Level 1 (0 points)
    Thank you Chris for your hint.

    I found this solution:
    right-click the file -> get info -> open with -> ... -> change all
    This uses the chosen application to open ALL documents like this one (not only the one which is defined to "open with...")