12-12-2011 02:55 AM - edited 12-12-2011 02:56 AM
Since Dolby Home Theater v4 is overwhelming in the previous W520 Sound Enhancement Thread itself and confusing for the new, I would post pdf files of how to install Dolby and optimize your sound experience to the best possible experience as promised.
ThinkPad: W520 (4284-A99)
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Dolby Home Theater v4 (ThinkMix V2)!