Question about Apple QuickTime
What kind of video is being played? If its HD on an older computer it could have choppiness problems. you can try going to Applications>Utilities>Disk utility. In there, Click your startup drive, and click repair disk permissions. If that does not work, you should reinstall your operating system. I can guide you through that if necessary.
Posted on Nov 19, 2008
A slowdown occurs on PowerPC Macs when watching movies in Windows formats (mostly WMV or AVI). A recent upgrade to Flip4Mac (the tool that allows Quicktime Player to play Windows-format videos) is the culprit, as it substituted very inefficient Silverlight code on PPCs for the efficient code in earlier versions.
The solution is to downrev Flip4Mac. Use the uninstaller tool in Applications/Flip4Mac. Then download version 126.96.36.199 of Flip4Mac from:
and run the installer. This will replace the efficient code and greatly smooth your movie viewing. If Flip4Mac urges you to upgrade back to the newer version, ignore it.
Posted on Nov 27, 2009
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Posted on Jan 02, 2017
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