MKV conversion problem

I’m trying to burn MKV video without loosing the subtitles. Nero 9 doesn’t recognize the file type and media coder is dropping some of the subtitles. I cant find a solution, other than learning Japanese. I havnt used media coder much so im sure some settings might be causing this.
If anyone can help by recommending a new program or has any idea of what im doing wrong it would help a lot.

MKV, is a container…What are the video and audio specs…Xvid4PSP is a nice MKV to other format(s) app…Don’t let the title fool you…