I'm on a laptop running OS X 10.3.9 (Panther) and I've downloaded "QuickTime 7.5 for Panther updater" -- and for the life of me I can't figure out how to install it.

The file mounts as a disk image. When I doubleclick it I see a QuickTime75_Panther.pkg file which opens when I double click. Inside I see a lot more files but nothing that lets me install. Help?

2 Answers 2


.pkg files are so called packages, which can be installed by Installer.app, so try right-clicking the .pkg file and hit Open with -> Installer

  • 2
    However by default .pkg files open with Installer so you have changed something on your machine.
    – mmmmmm
    May 29, 2011 at 20:34
  • @Mark you're right. Should have mentioned that. Thank you.
    – dertkw
    May 29, 2011 at 21:21

You can install the .pkg file using the following command on Terminal.app(assuming your .pkg file is in Downloads directory).

sudo installer -pkg ~/Downloads/QuickTime75_Panther.pkg /Applications/

The above command will install QT on the Applications directory.

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