Complex sentence: Cesar Gracie is also well known for his DVD instructional series, which is considered by those in the MMA community as the best example of video instruction in Gracie Jiu-Jitsu skills, even more than those made by celebrated Gracie family members Renzo and Royler.
Split into simpler sentences: Cesar Gracie is also well known for his DVD instructional series. It is considered by some as one of the best examples of video instruction in Gracie Jiu-Jitsu skills even more than those made by celebrated Gracie family members Renzo and Royler.