Nokia 5800 & Movies

Hi Guys,

Does anyone here know how to get movies working on a nokia 5800 xpress music?

I ripped some of my own DVD's into DivX format, but after copying them across to the mobile memory card, I tried playing them, and all failed, saying unsupported file format, is their a special codec available to play divx on my mobile or do I have to convert the divx movies into another format, if so, which format and how do I convert them, meaning which is the best program to do so...

Cheers,

David