QT Pro and Perian

I just read somewhere that the application Perian is not compatible with iMovie8. I have the 1.1.3 Perian version and I'm having some problems with iMovie8, when importing a clip the video quality becames very bad.
Do I still need Perian if I have QT Pro ?

Yes, Perian is a good component to have...
This is how I have Perian setup on my computer. And you might want to do the same.
Open your System Preference Panel. Click on the Perian icon to open up it's preferences, click uninstall. When you need Perian or when you not using iMovie, click on the install tab.
Now you don't have to drag anything from folders to uninstall Perian.

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