This guide gives you the instructions to produce the best video quality which is watchable on Nokia 9210.
At first you should download the programs VirtualDub (freeware) and Real Helix Producer 9 (not freeware). The version 8 or 8.5 might be good options too, if they have the video codec RealVideo G2 with SVT. You should also have the Real Player on your Nokia 9210.




If you can't find the Real Helix Producer anywhere, below are the video setting you must use in the conversion.
I want to give all credits for these instructions to My-Symbian.com forum member Jeopardy, who taught me all this.