see I got the simplest way download samsung pc suite the new one ok. install it on the comp connect yr mobile now open th widget option present in the open th video convertor and drag and drop th video file and click on convert
it wud automatically convert th file into the type of video format that wud suite yr mobile th best .
u dun need to do anything or set anything
this is for all the samsung phones
just hav fun
do it the simpler