process to convert .mpeg -> .xmv
1. encode it to WMV. [theres tools for this]
2. use some of the tools with the XDK [im not going in to details; legality]
3. convert it -> done.
its pretty easy, once you have it in 'xmv' format your practically done. converting it takes no time, just play with some tools that come with the XDK [hint: they have xmv in the title