I have used the templates of 708 x 480 and i thought it suppose to fit Avg. 90 minutes per cd. but i tried to encoding two 45 min. video and it came out to be larger than orginal like 50 min. each. I didn't change any of the setting CQ is at 60.

anyone know why?
thanks

You must use file size prediction
Read about it on the forum, or use "ToK

-kwag