MKV2M4V can convert MKV files to M4V(MP4) files. It is very fast because it converts only the audio tracks, while only copying the video track. For that reason, it can convert while preserving the full video quality. It can also decode FLAC audio. And if you have a SRT file, it is available to insert as a closed caption.
v1.2 [Oct 30, 2012]
• 'Closed Caption' Line option was added.
- 'Two Lines': Recommended for OS-based media playback App in OS X 10.7.x, iOS 5.x (except Apple TV).
- 'More Lines + Margin', 'More Lines': Recommended for OS-based media playback App in OS X 10.8.x or later, iOS 5.1.x or later (only Apple TV), iOS 6.x or later.
• Minor things were enhanced.
