Some tools to be used for video conversion
Easy to use application.
I have used iRiver settings successfully.
2) Nokia N800 Video Convert
Not yet tested but looks quite interesting application
3) Media converter
The application made for 770
I used this for a long time but now I prefer the first one
Version 1.2: http://mediaconverter.garage.maemo.o…Converter.html
Version 1.43: https://garage.maemo.org/projects/mediaconverter/
Media Converter 2.03: http://www.audua.com/Media_Converter_2/index.html