Jeff,
Quote:
Well, the difference between THX Surround EX and Dolby Digital EX is a very small one. THX Surround EX uses the original Dolby-ProLogic decoder to extract the rear channel from the surrounds, whereas Dolby Digital EX using Dolby-ProLogic II to do it.
How about that other small difference between the two modes: one applies all the THX post-processing and the other one doesn't. (I'll let you figure out which is which.)

Sanj
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Sanjay