install all it

extra decoders support 0.4
http://repository.maemo.org/extras/p..._0.4_armel.deb

terminal
root:
/usr/bin/tracker-register-mimetype -c Videos -a video/x-matroska

and subtitles

http://repository.maemo.org/extras/p...m5-4_armel.deb


http://repository.maemo.org/extras/p...m5-2_armel.deb


http://repository.maemo.org/extras/p...m5-2_armel.deb

ogg
http://repository.maemo.org/extras-t....0.5_armel.deb

and with sib player in n900
http://repository.maemo.org/extras-d....6-2_armel.deb

And in pc with ripbot264 software you must be resize .mkv to 840x480 resolution and you can change the subtitles.


and go! go! n900 playing .mkv file 800x480

n900 1150mhz or 1.2ghz are ideal for it

with 950mhz my n900 do not synchronized video-audio
begin well but after desynchronized