Which program Hunting use to convert MP4

I using now Cyberlink PowerDirector.
Sg-y-d.J4_ When I try use this program to convert MP4 , the size is about 200 MB or  1.2 GB and up.
&pw5y,_)Z3utme Cant choose the size like hunting.
dh#E/TG,k]NU6t*| So I want know which program you guys use to convert.c8k?Y V

H%aTQ#M*_M thanks