I think there is no need for introduction to Divx,here is a promo which will give you $19.99 worth Divx Pro 7 software for free.
About Divx Pro 7
DivX® Pro 7 provides everything you need for a true HD experience. Utilizing the latest and greatest video technology based on H.264, the new standard for HD digital video, DivX Pro 7 lets you create HD video and play MKV videos with high-quality AAC audio. You can also play your DivX files (.divx, .avi) on millions of DivX Certified® devices today.DivX Pro 7 for Windows requires Windows XP or Vista (32-bit).
For system requirements and other info visit http://www.divx.com/divx-pro
Thanks to Mayur&freeteam