Apple QuickTime 7.7 - For Mac OS X 10.5 Leopard users only. Download the latest versions of the best Mac apps at safe and trusted MacUpdate Download, install, or update Apple QuickTime for Mac. Feb 06, 2011 I have a Mac OS X version 10.5.8. I have QuickTime Player 7.6.9 installed. Whenever I try to open a wmv file, I get the message 'The movie could not be opened. The file is not a movie file.' This happens for all wmv files.
The OS X Yosemite 10.10.5 update improves the stability, compatibility, and security of your Mac, and is recommended for all users. This update:
Improves compatibility with certain email servers when using Mail
Fixes an issue in Photos that prevented importing videos from GoPro cameras
Fixes an issue in QuickTime Player that prevented playback of Windows Media files
For detailed information about the security content of this update, see Apple security updates.
How to update your Mac
You should back up your Mac before installation. You can back up with Time Machine, for example.
Use the Mac App Store to install this update and other available updates. Some updates become available only after installing another update.
Don't interrupt the installation process after it has begun.
You might have unexpected results if third-party OS X modifications have been installed, or you modified OS X through other means.
You can also get this update from the Apple Support Downloads site. Standalone updates can be useful if you want to install the same update again or on another computer.