Features:
Separate price is a bit steep, so I suggest if you want to get it, get it with PowerDirector.
Check more at http://www.cyberlink.com/products/audiodirector/tutorial_en_US.html
AudioDirector 4 is available
Some of new features
Audio Effect Room
Restoration Room
Mix Room
CD Burning
Format Support
http://www.cyberlink.com/products/audiodirector/features_en_US.html?&r=1
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