Hurry up, because just for today DivX is giving away DivX Pro for free. All you have to do is enter your email address in this page. This link is for the Windows version, but you can also get DivX for Mac by clicking the link on the top right of the page. Once your email is entered, DivX will send you a free serial number for the program.

DivX Pro not only gives you access to the DivX player, codec and web player but also lets you use the DivX converter and the Pro codec for an unlimited amount of time. DivX is known for excellent encoding quality and a solid media player.