MKV or MP4?

[shapper]

Hello,

I am encoding my movies to H.264. I want to have english sub titles.

What file type should I use? MKV or MP4?

And is it possible to change a MKV file to MP4? I have a few MKV movies ...

Thank You,
Miguel

[poisondeathray]

They are just containers, and you can change containers at any time

If this is for PC playback MKV is generally preferred, because it supports more audio &video formats, as well as subtitles formats - many of which mp4 does not. However, some devices do no support mkv, and only mp4 - not a problem if it's only for PC

[ricardouk]

...However, some devices do no support mkv....

Arent the new divx 7 hardware players going to change that with the adoption of MKV? Many popular players like the popcorn hour, Western digital HD player, etc etc already play MKV so i would choose MKV, i only use MP4(h264+aac) for streaming videos.

[poisondeathray]

Yep many devices already support mkv. And it's easy to switch back and forth between mp4 without re-encoding , so it's not an issue.