Default video player application in Android is one thing that has not been taken seriously by Google. He could not be relied upon to play the share video format.
For this reason, it took another video player application that Android devices can play various files. However, it all comes back to the components of embedded processor on the device used. Single-core processor with the ARMv6 architecture, for example, can not smooth running various video formats.
If you have a relatively modern device with a fast processor, then some apps will help play video in various formats and helps display the text language translator (subtitle).
