The Best setting would totally depend on what the Properties of your AVI files are... If you have very Little Video Knowlege then you should Avoid useing CCE SP 2.70 because it is a fairly complex encoder to use and you need a very good knowlege of Digital video to use it Properly.... You have to Know all about the Differance between Progressive and Interlaced and Have to Know the Differance between 3:2 Pulldown and 2:3 Pulldown and IVTC and you Have to Know the Differance between Linier and Non-Linear quantization..So if this all sounds Like Mumbo Jumbo then use something else like "Tmpgenc Xpress" because it will scan your source file and change these settings to the Correct ones for you , or go to Broadcasting school for 3 years to Learn about it Like I did.... Cheers