No free software that I'm aware of... you need to know what you are doing.
Tutorial for final cut pro, but that's some hardcore shee-ite to be fair..
http://www.wonderhowto.com/how-to-bl...ut-pro-376843/
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Previously: 2003 Peugeot 206 1.6 8v | 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. | 2003 Nissan 350Z GT Coupe 286BHP
Now:2010 E92 LCI 335d M-Sport