all i did was
1. select the presets to normal or custom made one for my ps vita
video tab
2. change the video codex to H.264(x264)
3. frame rate to same as source
4. Quality to RF 20(Those two option determine your video quality 0 means lossless and meaning a bigger file size the the original unless the original is lossless already)
and advance is default and video filter tab off everything eles should be default
You can Google search bros MKV to mp4 converter
1. select the presets to normal or custom made one for my ps vita
video tab
2. change the video codex to H.264(x264)
3. frame rate to same as source
4. Quality to RF 20(Those two option determine your video quality 0 means lossless and meaning a bigger file size the the original unless the original is lossless already)
and advance is default and video filter tab off everything eles should be default
You can Google search bros MKV to mp4 converter