Since re-installing W7, I have no sound from MOV files shot on my Canon from Quicktime, VLC, Mediaplayer and Adobe Premiere Elements. I can convert the files to mp4 and they play fine in iTunes but still not with other players. There is sound for the first second but it quickly drops off to a muffle. I have installed a few codec packs but nothing has helped. I've attached some file parameters. The files also play on my W8 machine, no problem.
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