can some one please help me to convert a realplayer vid to an lg km555 mobile?

[rapman]

ok so when i download a vid from youtube and then convert it to my mobile (lg mk555 touch )
what should i choose
1.realvideo
2.windows media
3.real player plus h.264
4.3gp


if u dont know please try to help me in another way
thanx



note:i will choose best answer in 24 hours
and what should i choose on the audio setting??
1.aac
2.mp3
3.realaudio 10
4.realaudio
5.wav
6.windows media audio