From Bigasoft.com:

Bigasoft MKV Converter helps you convert MKV file to all popular video formats for playback no matter where you are. It fast converts MKV (Matroska Video) to the proper formats playable on iPod, iPhone, BlackBerry, Zune, PSP, Apple TV, XBox, other MP4 Player, etc.

The MKV video converter can easily convert MKV to AVI, convert MKV to MP4, convert MKV to WMV, as well as other popular video formats like AVI, DivX, Xvid, WMV, MP4, H.264, MOV, HD video, etc. Moreover, it also can convert MKA (Matroska Audio) to MP3, WAV, WMA, AAC or M4A music to help you listen to your superb songs no matter where you are.

With strong editing functions support, the powerful conversion tool can help you make your creative movies. Split MKV files into several segments with the exact time length. Crop the playing region to get the perfect playing effect and the best video quality.

Key Features:
1. Watch WKV anywhere
2. Convert WKV to other formats
3. Listen to MKA files
Convert MKA (Matroska Audio) to MP3, WAV, WMA, AAC or M4A music to help you listen to your superb songs no matter where you are.
4. Extract audio from MKV
Extract sound tracks from MKV movies to hear anywhere or share with your friends.
5. Watch marvelous part
Getting rid of the ads, trailers, beginning and ending segment of the MKV movies can be done by setting the exact start time and duration.
6. Best quality for watching
Crop frame size to remove your unwanted area using this MKV file converter like the smart scissors.
7. Preview and take snapshot
8. Batch conversion
Set after done action ahead of conversion to save time on waiting and ease your digital life.
9. Pause at any moment
When converting MKV movies, you can pause, stop and continue at your will.
10. Easy to use
11. Windows Vista supported
12. Support multi-language
Support multi-language like English, German, French, Chinese and Japanese now.