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kriz2311 posted on Dec 17, 2010 7:26:53 PM - Report post
Figured I'd post this here and save people some googling. If you're having issues with sound playing GT5 try disabling DTS as an output in your PS3 sound settings.
Seems several people are not getting sound when using an optical cable to connect to their HTIB... this resolved the issue for me and a few other people so it's worth a shot.