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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Applications > AVI's won't play in QT Pro or work in iMovie HD anymore

AVI's won't play in QT Pro or work in iMovie HD anymore
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OnTheKeys
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Apr 22, 2008, 02:29 PM
 
This just happened yesterday, everything was going fine until I tried to import an AVI from my camcorder into iMovie (the same camcorder i've been using for weeks with no problems) and all of a sudden I get

"You need to download additional software to play this file" etc. And the screen is white.
     
Jacke
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Apr 22, 2008, 04:33 PM
 
Obvious question: have you installed anything lately that could have messed it up?
     
OnTheKeys  (op)
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Apr 23, 2008, 02:06 AM
 
The only thing I can think of is VLC Media Player, but that wouldn't mess up Quicktime, as it hasn't in the past.

EDIT: One more thing I just thought of, there was a setting to make Quicktime my default player for internet videos or something like that, and I said yes, I don't know why that would make it not play AVI's anymore though.
     
Jacke
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Apr 23, 2008, 08:37 AM
 
Open the avi in VLC and get info to see what the video fourcc is.

Then list the components you have installed in Library/Quicktime and Home/Library/Quicktime.
     
OnTheKeys  (op)
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Apr 23, 2008, 10:02 AM
 
Ok the problem is fixed, thanks Jacke. Apparently, somewhere along the software update that I did, a xvid codec and a mpga audio codec got deleted? It was working fine until I did a software update.

I installed xVid and Perian, and everything's working now. Much appreciated.
     
   
 
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