Sonic today acquired video codec maker DivX for $3.75 per share, or the equivalent of $323 million. The deal gives the owner of Roxio one of the more popular video formats and are intended to give Sonic a better means of providing video over the Internet, especially for home electronics. Many Blu-ray and DVD players, TVs, and set-top boxes already support DivX videos, and DivX is already using copy protection approved by movie studios, Sonic said.