Download jetaudio and install it type "rapidshare jetaudio" in google to download .
then open jetaudio and goto converter -> video . Goto output option and select the following
FIle format MP4 (MPEG$+ACC)
tick variable bitrate and select lowest
audio bitrate 32 to 128 kbps is good enough
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