This (7.x) is for future expansions of the DD format (and presumably DTS if speilberg so chooses), THX itself is _NOT_ a format, you will _NOT_ be finding any "7.2 THX" listings on DVDs anytime soon, THX is a mastering/playback certification/ruleset, nothing more, nothing less.
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This (7.x) is for future expansions of the DD format (and presumably DTS if speilberg so chooses), THX itself is _NOT_ a format, you will _NOT_ be finding any "7.2 THX" listings on DVDs anytime soon, THX is a mastering/playback certification/ruleset, nothing more, nothing less.