I get a message "QuickTime Player doesn't understand video format. What can I do?
I get a message "QuickTime Player doesn't understand video format. What can I do?
VLC media player - http://www.videolan.org/vlc/ - general media player that plays just about anything.
Perian codecs for Quicktime - http://www.perian.org - plugins to add functionality to Quicktime for playing additional audio and video formats
Quicktime audio problems, Perian, VLC - http://discussions.apple.com/message.jspa?messageID=9013669 - read note about uninstalling prior DIVX support before installing Perian.
Media Info - http://mediainfo.sourceforge.net - to get details of codecs used in multimedia
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QuickTime Error Message: "QuickTime Player quit unexpectedly"
Error Message: "QuickTime Player quit unexpectedly"
From the error report (sent to Apple):
QuickTime 10.2 (603.6)
Operation: Launch
Application Specific Information: [565] stack overflow
Hardware and software configurations:
MacBook Pro 15" Retina Display
Mac OS X 10.8.2
Affects ALL .mp4 files (double-click and attempting to open file from within QuickTime)
Occurs when attempting to launch QuickTime by double-clicking an .mp4 file, or attempting to open an .mp4 file from the QuickTime menu. Attempting to open ANY .mp4 file results with this error message.
QuickTime is the default application for all .mp4 files. Reseting this option via the Finder "Get Info" had no effect. Changing the option to another video player (e.g., MPEG Streamclip) allowed the .mp4 files to play. Returning to QuickTime as the default player resulted in same error message (i.e., "QuickTime Player quit unexpectedly").
The video files (.mp4) are not the problem; ALL of the files open within iTunes, MPEG Streamclip, and other video players. The problem appears to be limited to QuickTime or something that is interfering with QuickTime.
Note that no external drives or other peripherals are connected to the computer when this error occurs, except for a Wi-Fi connection via an Apple Time Capsule (disconnecting the Wi-Fi did not resolve the problem; same error message occurred when attempting to open an .mp4 file).
No 3rd party QuickTime plug-ins have been installed.
QuickTime was working fine and playing ALL videos until the last week. No discernible usage pattern is evident for diagnosing the reason for the error message.
Note the exact same problem is occurring on two separate MacBook Pro 15" Retina Display systems, both running Mac OS X 10.8.2
Mac OS X 10.8.2 software is up-to-date.
Rebooting the system did not rectify the problem.
Two separate computers, both exhibiting the same problem with different .mpg4 files.
Any ideas?
The consideration of a reply is appreciated.Paull71
To Apple Discussions!
You are not disturbing me. In order for anyone here to help you, you must provide details of what the problems you are having with QuickTime in order for the users here to provide proper troubleshooting suggestions.
Also, please indicate all the the troubleshooting things you have tried to solve your issue. This will eliminate the +"been there done that"+ scenarios.
If your problem is not like the one of this posting, then you will need to re-post as a New Topic so that your issue *can get more focused attention.* -
QuickTime player doesn't launch when streaming podcast
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Yeah a lot of people are having this problem now:
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Will QuickTime Player open if you are logged in to a different user account?
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http://www.gottabemobile.com/2011/10/12/icloud-photo-stream-on-windows-pc/
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Hello there, SteveShanaman.
The following Knowledge Base article provides some great steps for troubleshooting applications:
iOS: Understanding multitasking
http://support.apple.com/kb/ht4211
Particularly:
Additional Information
If an app doesn't respond to your input, or doesn't perform as expected, do the following, testing after each step:
Check for app updates.
Force the app to close.
Restart your device.
Update your iOS device.
Learn more about troubleshooting apps.
Thanks for reaching out to Apple Support Communities.
Cheers,
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