FLV files without sound

Hi,
When I try to play some flash video files from youtube, google video or the ones I make, the video plays ok, but the sound not.
This happens with all the browsers I have installed (Safari, Firefox, Camino, Opera).
Any guess what could be?
Thanks,
Maxi.

Maxi76,
Mac OS X: No audio from certain multimedia content, may be helpful. Additionally, opening GarageBand (if you have it installed) often corrects problems of this nature.
;~)

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https://itunes.apple.com/es/album/hit-the-floor/id876839881?i=876846887
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Hi chmrules!
You may need to delete this file and try re-downloading it again using the past purchases list:
Download past purchases
http://support.apple.com/kb/ht2519
If you are still experiencing issues with this file, report an issue with it using this:
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http://support.apple.com/kb/ht1933
Thanks for being a part of the Apple Support Communities!
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I am currently using Bridge CS3 to view all of my FLV files
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Thanks Adobe for ....

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Hey QuickTimeKirk, I appreciate the quick reply. I tried out your suggestion, but it didn't work. No worries though because another member of the Support Forum (Malcolm Rayfield) was able to provide the following solution...
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