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Old December 18th, 2007, 10:40 AM   #1
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I can't play MP4, Please help!

I have a powerbook and I can't seem to play a lot of the mp4s. Sometimes they open with a white screen and other times I get an error: "invalid sample description was found in the movie"
I'm using quicktime 7.2 I would think that mp4 is the one thing quicktime should always open.
Aric Mannion is offline   Reply With Quote
Old December 21st, 2007, 05:58 PM   #2
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I donít know if this will help but you should try reinstalling QuickTime.
Paulo Teixeira is offline   Reply With Quote
Old December 22nd, 2007, 12:32 AM   #3
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Quote:
Originally Posted by Aric Mannion View Post
I have a powerbook and I can't seem to play a lot of the mp4s. Sometimes they open with a white screen and other times I get an error: "invalid sample description was found in the movie"
I'm using quicktime 7.2 I would think that mp4 is the one thing quicktime should always open.
This will sound simplistic but try reloading the page. I don't know if I read the explanation correctly but the computer may require a reload, first comes the sound, then comes the picture.
Alessandro Machi is offline   Reply With Quote
Old December 27th, 2007, 03:29 AM   #4
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May be it's a codec problem?
download latest Quicktime Alternative codec
http://www.free-codecs.com/download/...ative_Lite.htm
David Angelas is offline   Reply With Quote
Old December 27th, 2007, 01:06 PM   #5
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Try changing the extension to 3GP. Did you capture your video with a cell phone?
Emre Safak is offline   Reply
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