The ONLY reason I download Xvid, You will see...
I LOVE MKV, I prefer it actually. BUT, and this is a BIIG but, On portable devices like smartphones and PDA's h.264 is unplayable. MKV as a container is, but when coded with soft subs, they do not show, because there is no subtitle renderer on the portable devices media players. I use Coreplayer, on my PDA to watch anime behind the welcome desk while at work, but It is a real drag to run across softsubs, it feels liek a waste of time...